{"id":7543,"date":"2021-11-20T14:00:31","date_gmt":"2021-11-20T07:00:31","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7543"},"modified":"2021-11-20T15:08:49","modified_gmt":"2021-11-20T08:08:49","slug":"gach-hoa-lat-nha-co-nhieu-loai-nhung-noi-chung-deu-co-dang-hinh-vuong-hoac-hinh-luc-giac-tai-sao-vay","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/gach-hoa-lat-nha-co-nhieu-loai-nhung-noi-chung-deu-co-dang-hinh-vuong-hoac-hinh-luc-giac-tai-sao-vay\/","title":{"rendered":"G\u1ea1ch hoa l\u00e1t nh\u00e0 c\u00f3 nhi\u1ec1u lo\u1ea1i nh\u01b0ng n\u00f3i chung \u0111\u1ec1u c\u00f3 d\u1ea1ng h\u00ecnh vu\u00f4ng ho\u1eb7c h\u00ecnh l\u1ee5c gi\u00e1c. T\u1ea1i sao v\u1eady?"},"content":{"rendered":"\n<p>Trong c\u00e1c h\u00ecnh ph\u1eb3ng nhi\u1ec1u c\u1ea1nh \u0111\u1ec1u ch\u1ec9 c\u00f3 ba lo\u1ea1i h\u00ecnh c\u00f3 th\u1ec3 l\u1eafp k\u00edn m\u1ed9t m\u1eb7t ph\u1eb3ng kh\u00f4ng c\u00f3 khe h\u1edf l\u00e0 c\u00e1c h\u00ecnh tam gi\u00e1c, h\u00ecnh vu\u00f4ng v\u00e0 h\u00ecnh l\u1ee5c gi\u00e1c. V\u1edbi h\u00ecnh tam gi\u00e1c \u0111\u1ec1u c\u00f3 ba g\u00f3c \u0111\u1ec1u b\u1eb1ng 60o, khi gh\u00e9p s\u00e1u h\u00ecnh tam gi\u00e1c \u0111\u1ec1u l\u1ea1i v\u1edbi nhau ta s\u1ebd c\u00f3 m\u1ed9t \u0111\u1ec9nh chung l\u00e0 360o. H\u00ecnh vu\u00f4ng c\u00f3 m\u1ed7i g\u00f3c l\u00e0 90o, gh\u00e9p b\u1ed1n h\u00ecnh vu\u00f4ng v\u1edbi nhau, ta c\u0169ng c\u00f3 m\u1ed9t \u0111\u1ec9nh chung l\u00e0 360o. V\u1edbi h\u00ecnh l\u1ee5c gi\u00e1c c\u00f3 c\u00e1c g\u00f3c l\u00e0 120o, khi gh\u00e9p ba l\u1ee5c gi\u00e1c l\u1ea1i v\u1edbi nhau ta c\u0169ng thu \u0111\u01b0\u1ee3c m\u1ed9t h\u00ecnh c\u00f3 \u0111\u1ec9nh chung l\u00e0 360o.<\/p>\n\n\n\n<p>N\u1ebfu d\u00f9ng c\u00e1c h\u00ecnh nhi\u1ec1u c\u1ea1nh \u0111\u1ec1u kh\u00e1c th\u00ec kh\u00f4ng \u0111\u1ea1t \u0111\u01b0\u1ee3c y\u00eau c\u1ea7u \u0111\u00f3. V\u00ed d\u1ee5 n\u1ebfu d\u00f9ng h\u00ecnh ng\u0169 gi\u00e1c \u0111\u1ec1u ch\u1eb3ng h\u1ea1n. M\u1ed7i g\u00f3c c\u1ee7a h\u00ecnh ng\u0169 gi\u00e1c \u0111\u1ec1u l\u00e0 180o. N\u1ebfu gh\u00e9p ba ng\u0169 gi\u00e1c l\u1ea1i v\u1edbi nhau, ta s\u1ebd c\u00f3 \u0111\u1ec9nh chung l\u00e0 324o, nh\u1ecf h\u01a1n 360o n\u00ean c\u00f3 khe h\u1edf. N\u1ebfu d\u00f9ng b\u1ed1n h\u00ecnh ng\u0169 gi\u00e1c gh\u00e9p l\u1ea1i v\u1edbi nhau th\u00ec c\u00f3 g\u00f3c chung l\u00e0 108o x 4 = 432o l\u1edbn h\u01a1n 360o.<\/p>\n\n\n\n<p>Gh\u00e9p c\u00e1c h\u00ecnh tam gi\u00e1c \u0111\u1ec1u v\u1edbi nhau tuy kh\u00f4ng c\u00f3 khe h\u1edf nh\u01b0ng g\u1ea1ch hoa c\u00f3 h\u00ecnh tam gi\u00e1c th\u00ec tr\u00f4ng kh\u00f4ng \u0111\u1eb9p b\u1eb1ng h\u00ecnh vu\u00f4ng ho\u1eb7c h\u00ecnh l\u1ee5c gi\u00e1c \u0111\u1ec1u. N\u00ean trong ngh\u1ec7 thu\u1eadt <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">thi\u1ebft k\u1ebf<\/a> ng\u01b0\u1eddi ta hay d\u00f9ng c\u00e1c h\u00ecnh vu\u00f4ng ho\u1eb7c h\u00ecnh l\u1ee5c gi\u00e1c.<\/p>\n\n\n\n<p>T\u1eeb kho\u00e1: H\u00ecnh vu\u00f4ng, h\u00ecnh tam gi\u00e1c \u0111\u1ec1u, h\u00ecnh l\u1ee5c gi\u00e1c \u0111\u1ec1u.<\/p>\n\n\n\n<p><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Trong c\u00e1c h\u00ecnh ph\u1eb3ng nhi\u1ec1u c\u1ea1nh \u0111\u1ec1u ch\u1ec9 c\u00f3 ba lo\u1ea1i h\u00ecnh c\u00f3 th\u1ec3 l\u1eafp k\u00edn m\u1ed9t m\u1eb7t ph\u1eb3ng kh\u00f4ng c\u00f3 khe h\u1edf l\u00e0 c\u00e1c h\u00ecnh tam gi\u00e1c, h\u00ecnh vu\u00f4ng v\u00e0 h\u00ecnh l\u1ee5c gi\u00e1c. V\u1edbi h\u00ecnh tam gi\u00e1c \u0111\u1ec1u c\u00f3 ba g\u00f3c \u0111\u1ec1u b\u1eb1ng 60o, khi gh\u00e9p s\u00e1u h\u00ecnh tam gi\u00e1c \u0111\u1ec1u l\u1ea1i v\u1edbi nhau [&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":[15,9],"tags":[],"class_list":["post-7543","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7543","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=7543"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7543\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7543"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7543"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7543"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}