{"id":23926,"date":"2021-12-17T17:08:08","date_gmt":"2021-12-17T10:08:08","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=23926"},"modified":"2021-12-17T17:08:09","modified_gmt":"2021-12-17T10:08:09","slug":"the-tich-khoi-chop","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/the-tich-khoi-chop\/","title":{"rendered":"TH\u1ec2 T\u00cdCH KH\u1ed0I CH\u00d3P"},"content":{"rendered":"<h2><a id=\"post-23926-_Toc492701526\"><\/a><a id=\"post-23926-_Toc493273876\"><\/a><strong>A- L\u00dd THUY\u1ebeT CHUNG<\/strong><\/h2>\n<p>Tr\u01b0\u1edbc khi v\u00e0o ph\u1ea7n b\u00e0i t\u1eadp b\u1ea1n \u0111\u1ecdc c\u1ea7n trang b\u1ecb cho m\u00ecnh c\u00e1c ki\u1ebfn th\u1ee9c c\u0103n b\u1ea3n t\u1ed1i thi\u1ec3u:<\/p>\n<p><strong>1. Th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p<\/strong><\/p>\n<p><strong>C\u00f4ng th\u1ee9c t\u00ednh:<\/strong> <img decoding=\"async\" width=\"81\" height=\"52\" class=\"wp-image-23927\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_256-41.png\" alt=\"IMG_256\" \/> v\u1edbi <img decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23928\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_257-40.png\" alt=\"IMG_257\" \/> di\u1ec7n t\u00edch \u0111\u00e1y, <img decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-23929\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_258-41.png\" alt=\"IMG_258\" \/> l\u00e0 chi\u1ec1u cao kh\u1ed1i ch\u00f3p.<\/p>\n<p><a id=\"post-23926-_heading=h.gjdgxs\"><\/a> <img loading=\"lazy\" decoding=\"async\" width=\"250\" height=\"224\" class=\"wp-image-23930\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_259.jpeg\" alt=\"IMG_259\" \/><\/p>\n<p><strong>2. \u0110\u1ecbnh l\u00fd t\u1ec9 s\u1ed1 th\u1ec3 t\u00edch kh\u1ed1i t\u1ee9 di\u1ec7n ho\u1eb7c kh\u1ed1i ch\u00f3p tam gi\u00e1c<\/strong><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"271\" height=\"311\" class=\"wp-image-23931\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_260.jpeg\" alt=\"IMG_260\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_260.jpeg 271w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_260-261x300.jpeg 261w\" sizes=\"(max-width: 271px) 100vw, 271px\" \/><\/p>\n<p>Cho kh\u1ed1i t\u1ee9 di\u1ec7n <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"23\" class=\"wp-image-23932\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_261-38.png\" alt=\"IMG_261\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"77\" height=\"27\" class=\"wp-image-23933\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_262-39.png\" alt=\"IMG_262\" \/> l\u00e0 c\u00e1c \u0111i\u1ec3m t\u00f9y \u00fd l\u1ea7n l\u01b0\u1ee3t thu\u1ed9c <img loading=\"lazy\" decoding=\"async\" width=\"93\" height=\"27\" class=\"wp-image-23934\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_263-40.png\" alt=\"IMG_263\" \/> ta c\u00f3:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"182\" height=\"56\" class=\"wp-image-23935\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_264-39.png\" alt=\"IMG_264\" \/><\/p>\n<p>Ch\u00fang ta s\u1ebd c\u00f9ng \u0111i ngay v\u00e0o c\u00e1c v\u00ed d\u1ee5 minh h\u1ecda \u0111\u1ec3 th\u1ea5y r\u1eb1ng c\u00f3 nh\u1eefng b\u00e0i li\u00ean quan \u0111\u1ebfn th\u1ec3 t\u00edch kh\u1ed1i \u0111a di\u1ec7n r\u1ea5t kh\u00f3, \u0111\u00f2i h\u1ecfi kh\u1ea3 n\u0103ng v\u1eadn d\u1ee5ng cao.<\/p>\n<h2><strong>B \u2013 B\u00c0I T\u1eacP TR\u1eaeC NGHI\u1ec6M<\/strong><\/h2>\n<p><strong>C\u00e2u 1: <\/strong>Cho kh\u1ed1i t\u1ee9 di\u1ec7n \u0111\u1ec1u <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-23936\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_265-39.png\" alt=\"IMG_265\" \/> c\u1ea1nh <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-23937\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_266-39.png\" alt=\"IMG_266\" \/> . G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23938\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_267-40.png\" alt=\"IMG_267\" \/> l\u00e0 \u0111i\u1ec3m \u0111\u1ed1i x\u1ee9ng c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23939\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_268-40.png\" alt=\"IMG_268\" \/> qua <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-23940\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_269-40.png\" alt=\"IMG_269\" \/> . M\u1eb7t ph\u1eb3ng qua <img loading=\"lazy\" decoding=\"async\" width=\"31\" height=\"23\" class=\"wp-image-23941\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_270-38.png\" alt=\"IMG_270\" \/> v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"34\" class=\"wp-image-23942\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_271-40.png\" alt=\"IMG_271\" \/> c\u1eaft c\u1ea1nh <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"23\" class=\"wp-image-23943\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_272-40.png\" alt=\"IMG_272\" \/> t\u1ea1i \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-23944\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_273-38.png\" alt=\"IMG_273\" \/> . T\u00ednh th\u1ec3 t\u00edch <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23945\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_274-39.png\" alt=\"IMG_274\" \/> c\u1ee7a kh\u1ed1i t\u1ee9 di\u1ec7n <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-23946\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_275-38.png\" alt=\"IMG_275\" \/> .<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"56\" class=\"wp-image-23947\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_276-39.png\" alt=\"IMG_276\" \/> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"56\" class=\"wp-image-23948\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_277-39.png\" alt=\"IMG_277\" \/> <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"56\" class=\"wp-image-23949\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_278-40.png\" alt=\"IMG_278\" \/> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"86\" height=\"56\" class=\"wp-image-23950\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_279-38.png\" alt=\"IMG_279\" \/><\/p>\n<p><strong>C\u00e2u 2: <\/strong>Cho t\u1ee9 di\u1ec7n <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-23951\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_280-40.png\" alt=\"IMG_280\" \/> c\u00f3 th\u1ec3 t\u00edch b\u1eb1ng 12 v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-23952\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_281-39.png\" alt=\"IMG_281\" \/> l\u00e0 tr\u1ecdng t\u00e2m tam gi\u00e1c <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-23953\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_282-40.png\" alt=\"IMG_282\" \/> . T\u00ednh th\u1ec3 t\u00edch <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23954\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_283-39.png\" alt=\"IMG_283\" \/> c\u1ee7a kh\u1ed1i ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"65\" height=\"23\" class=\"wp-image-23955\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_284-39.png\" alt=\"IMG_284\" \/> .<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-23956\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_285-40.png\" alt=\"IMG_285\" \/> .<strong> B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"23\" class=\"wp-image-23957\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_286-39.png\" alt=\"IMG_286\" \/> .<strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"23\" class=\"wp-image-23958\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_287-40.png\" alt=\"IMG_287\" \/> .<strong> D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-23959\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_288-40.png\" alt=\"IMG_288\" \/> .<\/p>\n<p><strong>C\u00e2u 3: <\/strong>Cho t\u1ee9 di\u1ec7n \u0111\u1ec1u c\u1ea1nh <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-23960\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_289-41.png\" alt=\"IMG_289\" \/> v\u00e0 \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-23961\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_290-40.png\" alt=\"IMG_290\" \/> n\u1eb1m trong t\u1ee9 di\u1ec7n. T\u00ednh t\u1ed5ng kho\u1ea3ng c\u00e1ch t\u1eeb <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"23\" class=\"wp-image-23962\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_291-39.png\" alt=\"IMG_291\" \/> \u0111\u1ebfn c\u00e1c m\u1eb7t c\u1ee7a t\u1ee9 di\u1ec7n.<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"56\" class=\"wp-image-23963\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_292-40.png\" alt=\"IMG_292\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"45\" height=\"56\" class=\"wp-image-23964\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_293-40.png\" alt=\"IMG_293\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"44\" height=\"56\" class=\"wp-image-23965\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_294-39.png\" alt=\"IMG_294\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"56\" class=\"wp-image-23966\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_295-38.png\" alt=\"IMG_295\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_295-38.png 56w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_295-38-50x50.png 50w\" sizes=\"(max-width: 56px) 100vw, 56px\" \/> .<\/p>\n<p><strong>C\u00e2u 4: <\/strong>Cho kh\u1ed1i t\u1ee9 di\u1ec7n <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-23967\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_296-38.png\" alt=\"IMG_296\" \/> c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"387\" height=\"31\" class=\"wp-image-23968\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_297-38.png\" alt=\"IMG_297\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_297-38.png 387w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_297-38-300x24.png 300w\" sizes=\"(max-width: 387px) 100vw, 387px\" \/> . G\u00f3c gi\u1eefa hai \u0111\u01b0\u1eddng th\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"23\" class=\"wp-image-23969\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_298-38.png\" alt=\"IMG_298\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"23\" class=\"wp-image-23970\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_299-39.png\" alt=\"IMG_299\" \/> b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"31\" height=\"27\" class=\"wp-image-23971\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_300-39.png\" alt=\"IMG_300\" \/> . T\u00ednh cosin g\u00f3c gi\u1eefa hai m\u1eb7t ph\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"34\" class=\"wp-image-23972\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_301-39.png\" alt=\"IMG_301\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"65\" height=\"34\" class=\"wp-image-23973\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_302-39.png\" alt=\"IMG_302\" \/> ?<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"53\" height=\"56\" class=\"wp-image-23974\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_303-39.png\" alt=\"IMG_303\" \/> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"44\" height=\"56\" class=\"wp-image-23975\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_304-39.png\" alt=\"IMG_304\" \/><strong> C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"53\" height=\"56\" class=\"wp-image-23976\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_305-39.png\" alt=\"IMG_305\" \/> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"44\" height=\"56\" class=\"wp-image-23977\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_306-39.png\" alt=\"IMG_306\" \/><\/p>\n<p><strong>C\u00e2u 5: <\/strong>Cho hi\u0300nh cho\u0301p t\u1ee9 gi\u00e1c <img loading=\"lazy\" decoding=\"async\" width=\"77\" height=\"23\" class=\"wp-image-23978\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_307-39.png\" alt=\"IMG_307\" \/> c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"120\" height=\"34\" class=\"wp-image-23979\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_308-39.png\" alt=\"IMG_308\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-23980\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_309-38.png\" alt=\"IMG_309\" \/> l\u00e0 h\u00ecnh thang vu\u00f4ng t\u1ea1i <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23981\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_310-39.png\" alt=\"IMG_310\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-23982\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_311-38.png\" alt=\"IMG_311\" \/> bi\u1ebft <img loading=\"lazy\" decoding=\"async\" width=\"73\" height=\"23\" class=\"wp-image-23983\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_312-38.png\" alt=\"IMG_312\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"132\" height=\"23\" class=\"wp-image-23984\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_313-37.png\" alt=\"IMG_313\" \/> . T\u00ednh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"77\" height=\"23\" class=\"wp-image-23985\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_314-37.png\" alt=\"IMG_314\" \/> theo <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-23986\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_315-37.png\" alt=\"IMG_315\" \/> , bi\u1ebft kho\u1ea3ng c\u00e1ch t\u1eeb A \u0111\u1ebfn m\u1eb7t ph\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"59\" height=\"27\" class=\"wp-image-23987\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_316-37.png\" alt=\"IMG_316\" \/> b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"56\" class=\"wp-image-23988\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_317-37.png\" alt=\"IMG_317\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_317-37.png 56w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_317-37-50x50.png 50w\" sizes=\"(max-width: 56px) 100vw, 56px\" \/> .<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"31\" class=\"wp-image-23989\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_318-37.png\" alt=\"IMG_318\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"31\" class=\"wp-image-23990\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_319-37.png\" alt=\"IMG_319\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"31\" class=\"wp-image-23991\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_320-37.png\" alt=\"IMG_320\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"31\" class=\"wp-image-23992\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_321-36.png\" alt=\"IMG_321\" \/> .<\/p>\n<p><strong>C\u00e2u 6: <\/strong>Cho h\u00ecnh ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-23993\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_322-36.png\" alt=\"IMG_322\" \/> c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"151\" height=\"31\" class=\"wp-image-23994\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_323-34.png\" alt=\"IMG_323\" \/> v\u00e0 t\u1ea5t c\u1ea3 c\u00e1c c\u1ea1nh c\u00f2n l\u1ea1i \u0111\u1ec1u b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-23995\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_324-34.png\" alt=\"IMG_324\" \/> . T\u00ecm <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-23996\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_325-34.png\" alt=\"IMG_325\" \/> bi\u1ebft th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p \u0111\u00e3 cho c\u00f3 th\u1ec3 t\u00edch b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"56\" class=\"wp-image-23997\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_326-34.png\" alt=\"IMG_326\" \/> .<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"52\" class=\"wp-image-23998\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_327-34.png\" alt=\"IMG_327\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"52\" class=\"wp-image-23999\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_328-33.png\" alt=\"IMG_328\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"52\" class=\"wp-image-24000\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_329-33.png\" alt=\"IMG_329\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"52\" class=\"wp-image-24001\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_330-33.png\" alt=\"IMG_330\" \/> .<\/p>\n<p><strong>C\u00e2u 7: <\/strong>Cho h\u00ecnh ch\u00f3p \u0111\u1ec1u <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24002\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_331-33.png\" alt=\"IMG_331\" \/> c\u00f3 \u0111\u00e1y c\u1ea1nh b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"19\" class=\"wp-image-24003\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_332-33.png\" alt=\"IMG_332\" \/> , g\u00f3c gi\u1eefa \u0111\u01b0\u1eddng th\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"28\" height=\"23\" class=\"wp-image-24004\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_333-33.png\" alt=\"IMG_333\" \/> v\u00e0 m\u1eb7t ph\u1eb3ng <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"34\" class=\"wp-image-24005\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_334-32.png\" alt=\"IMG_334\" \/> b\u1eb1ng <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"23\" class=\"wp-image-24006\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_335-32.png\" alt=\"IMG_335\" \/> . G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-24007\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_336-32.png\" alt=\"IMG_336\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-24008\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_337-32.png\" alt=\"IMG_337\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"26\" height=\"23\" class=\"wp-image-24009\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_338-32.png\" alt=\"IMG_338\" \/> t\u01b0\u01a1ng \u1ee9ng l\u00e0 c\u00e1c \u0111i\u1ec3m \u0111\u1ed1i x\u1ee9ng c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24010\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_339-31.png\" alt=\"IMG_339\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24011\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_340-31.png\" alt=\"IMG_340\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24012\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_341-31.png\" alt=\"IMG_341\" \/> qua <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"23\" class=\"wp-image-24013\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_342-31.png\" alt=\"IMG_342\" \/> . Th\u1ec3 t\u00edch c\u1ee7a kh\u1ed1i b\u00e1t di\u1ec7n c\u00f3 c\u00e1c m\u1eb7t <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"27\" class=\"wp-image-24014\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_343-30.png\" alt=\"IMG_343\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_343-30.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_343-30-50x27.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"23\" class=\"wp-image-24015\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_344-30.png\" alt=\"IMG_344\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"23\" class=\"wp-image-24016\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_345-30.png\" alt=\"IMG_345\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_345-30.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_345-30-50x23.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-24017\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_346-29.png\" alt=\"IMG_346\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-24018\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_347-28.png\" alt=\"IMG_347\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"23\" class=\"wp-image-24019\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_348-27.png\" alt=\"IMG_348\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"23\" class=\"wp-image-24020\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_349-27.png\" alt=\"IMG_349\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"53\" height=\"23\" class=\"wp-image-24021\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_350-27.png\" alt=\"IMG_350\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_350-27.png 53w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_350-27-50x23.png 50w\" sizes=\"(max-width: 53px) 100vw, 53px\" \/> l\u00e0<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"56\" class=\"wp-image-24022\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_351-27.png\" alt=\"IMG_351\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"31\" class=\"wp-image-24023\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_352-27.png\" alt=\"IMG_352\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"56\" class=\"wp-image-24024\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_353-27.png\" alt=\"IMG_353\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"60\" height=\"56\" class=\"wp-image-24025\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_354-27.png\" alt=\"IMG_354\" \/> .<\/p>\n<p><strong>C\u00e2u 8: <\/strong>Cho h\u00ecnh ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"56\" height=\"23\" class=\"wp-image-24026\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_355-27.png\" alt=\"IMG_355\" \/> c\u00f3 \u0111\u00e1y <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-24027\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_356-27.png\" alt=\"IMG_356\" \/> l\u00e0 tam gi\u00e1c vu\u00f4ng c\u00e2n, <img loading=\"lazy\" decoding=\"async\" width=\"112\" height=\"23\" class=\"wp-image-24028\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_357-27.png\" alt=\"IMG_357\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"111\" height=\"34\" class=\"wp-image-24029\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_358-27.png\" alt=\"IMG_358\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24030\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_359-26.png\" alt=\"IMG_359\" \/> . M\u1eb7t ph\u1eb3ng qua <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24031\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_360-25.png\" alt=\"IMG_360\" \/> , vu\u00f4ng g\u00f3c v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"31\" height=\"23\" class=\"wp-image-24032\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_361-24.png\" alt=\"IMG_361\" \/> c\u1eaft <img loading=\"lazy\" decoding=\"async\" width=\"59\" height=\"27\" class=\"wp-image-24033\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_362-24.png\" alt=\"IMG_362\" \/> l\u1ea7n l\u01b0\u1ee3t t\u1ea1i <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24034\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_363-21.png\" alt=\"IMG_363\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-24035\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_364-23.png\" alt=\"IMG_364\" \/> . T\u00ednh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24036\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_365-23.png\" alt=\"IMG_365\" \/> .<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"113\" height=\"56\" class=\"wp-image-24037\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_366-23.png\" alt=\"IMG_366\" \/> . <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"90\" height=\"56\" class=\"wp-image-24038\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_367-23.png\" alt=\"IMG_367\" \/> . <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"90\" height=\"56\" class=\"wp-image-24039\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_368-22.png\" alt=\"IMG_368\" \/> . <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"113\" height=\"56\" class=\"wp-image-24040\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_369-22.png\" alt=\"IMG_369\" \/> .<\/p>\n<p><strong>C\u00e2u 9: <\/strong>Cho h\u00ecnh ch\u00f3p tam gi\u00e1c \u0111\u1ec1u <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24041\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_370-22.png\" alt=\"IMG_370\" \/> c\u00f3 c\u1ea1nh \u0111\u00e1y b\u1eb1ng a. G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"34\" class=\"wp-image-24042\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_371-22.png\" alt=\"IMG_371\" \/> l\u00e0 m\u1eb7t ph\u1eb3ng \u0111i qua <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"23\" class=\"wp-image-24043\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_372-22.png\" alt=\"IMG_372\" \/> v\u00e0 song song <img loading=\"lazy\" decoding=\"async\" width=\"34\" height=\"23\" class=\"wp-image-24044\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_373-21.png\" alt=\"IMG_373\" \/> v\u00e0 vu\u00f4ng g\u00f3c v\u1edbi <img loading=\"lazy\" decoding=\"async\" width=\"65\" height=\"34\" class=\"wp-image-24045\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_374-20.png\" alt=\"IMG_374\" \/> g\u00f3c gi\u1eefa <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"34\" class=\"wp-image-24046\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_375-20.png\" alt=\"IMG_375\" \/> v\u1edbi m\u1eb7t ph\u1eb3ng \u0111\u00e1y l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"27\" class=\"wp-image-24047\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_376-19.png\" alt=\"IMG_376\" \/> Th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24048\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_377-18.png\" alt=\"IMG_377\" \/> l\u00e0:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"56\" class=\"wp-image-24049\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_378-17.png\" alt=\"IMG_378\" \/> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"56\" class=\"wp-image-24050\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_379-17.png\" alt=\"IMG_379\" \/> <strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"28\" height=\"56\" class=\"wp-image-24051\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_380-17.png\" alt=\"IMG_380\" \/> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"37\" height=\"56\" class=\"wp-image-24052\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_381-17.png\" alt=\"IMG_381\" \/><\/p>\n<p><strong>C\u00e2u 10: <\/strong>Cho h\u00ecnh ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"77\" height=\"23\" class=\"wp-image-24053\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_382-17.png\" alt=\"IMG_382\" \/> c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng c\u1ea1nh b\u1eb1ng 4, m\u1eb7t b\u00ean <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"23\" class=\"wp-image-24054\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_383-17.png\" alt=\"IMG_383\" \/> l\u00e0 tam gi\u00e1c \u0111\u1ec1u v\u00e0 n\u1eb1m trong m\u1eb7t ph\u1eb3ng vu\u00f4ng g\u00f3c v\u1edbi \u0111\u00e1y. G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"73\" height=\"27\" class=\"wp-image-24055\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_384-17.png\" alt=\"IMG_384\" \/> l\u1ea7n l\u01b0\u1ee3t l\u00e0 trung \u0111i\u1ec3m c\u1ee7a c\u00e1c c\u1ea1nh <img loading=\"lazy\" decoding=\"async\" width=\"107\" height=\"27\" class=\"wp-image-24056\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_385-17.png\" alt=\"IMG_385\" \/> Th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p <img loading=\"lazy\" decoding=\"async\" width=\"76\" height=\"23\" class=\"wp-image-24057\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_386-17.png\" alt=\"IMG_386\" \/> l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-24058\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_387-15.png\" alt=\"IMG_387\" \/> th\u1ec3 t\u00edch kh\u1ed1i t\u1ee9 di\u1ec7n <img loading=\"lazy\" decoding=\"async\" width=\"62\" height=\"23\" class=\"wp-image-24059\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_388-13.png\" alt=\"IMG_388\" \/> l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"23\" class=\"wp-image-24060\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_389-11.png\" alt=\"IMG_389\" \/> Gi\u00e1 tr\u1ecb <img loading=\"lazy\" decoding=\"async\" width=\"35\" height=\"23\" class=\"wp-image-24061\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_390-12.png\" alt=\"IMG_390\" \/> th\u1ecfa m\u00e3n b\u1ea5t \u0111\u1eb3ng th\u1ee9c n\u00e0o d\u01b0\u1edbi \u0111\u00e2y:<\/p>\n<p><strong>A. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"160\" height=\"31\" class=\"wp-image-24062\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_391-11.png\" alt=\"IMG_391\" \/> <strong>B. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"31\" class=\"wp-image-24063\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_392-12.png\" alt=\"IMG_392\" \/><\/p>\n<p><strong>C. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"31\" class=\"wp-image-24064\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_393-12.png\" alt=\"IMG_393\" \/> <strong>D. <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"31\" class=\"wp-image-24065\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_394-12.png\" alt=\"IMG_394\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A- L\u00dd THUY\u1ebeT CHUNG Tr\u01b0\u1edbc khi v\u00e0o ph\u1ea7n b\u00e0i t\u1eadp b\u1ea1n \u0111\u1ecdc c\u1ea7n trang b\u1ecb cho m\u00ecnh c\u00e1c ki\u1ebfn th\u1ee9c c\u0103n b\u1ea3n t\u1ed1i thi\u1ec3u: 1. Th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p C\u00f4ng th\u1ee9c t\u00ednh: v\u1edbi di\u1ec7n t\u00edch \u0111\u00e1y, l\u00e0 chi\u1ec1u cao kh\u1ed1i ch\u00f3p. 2. \u0110\u1ecbnh l\u00fd t\u1ec9 s\u1ed1 th\u1ec3 t\u00edch kh\u1ed1i t\u1ee9 di\u1ec7n ho\u1eb7c kh\u1ed1i ch\u00f3p tam [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[43],"tags":[],"class_list":["post-23926","post","type-post","status-publish","format-standard","hentry","category-toan-lop-12"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/23926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=23926"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/23926\/revisions"}],"predecessor-version":[{"id":24066,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/23926\/revisions\/24066"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=23926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=23926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=23926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}