Ch\u1eafc ch\u1eafn kh\u00f4ng \u00edt ng\u01b0\u1eddi v\u1eabn hay ngh\u0129 \u0111\u1ebfn \u201ccon s\u1ed1 t\u1ec9 l\u1ec7 v\u00e0ng\u201d 1,618. S\u1ef1 th\u1ef1c kh\u00f4ng ph\u1ea3i nh\u01b0 v\u1eady.<\/p>\n\n\n\n
K\u00edch th\u01b0\u1edbc m\u1ed9t quy\u1ec3n s\u00e1ch n\u00f3i chung do k\u00edch th\u01b0\u1edbc c\u1ee7a trang gi\u1ea5y nguy\u00ean (c\u1ee1 gi\u1ea5y theo ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t gi\u1ea5y: A0, A1\u2026) c\u1eaft ra m\u00e0 c\u00f3.<\/p>\n\n\n\n
V\u00ed d\u1ee5 kh\u1ed5 gi\u1ea5y c\u1ee1 32 l\u00e0 do g\u1ea5p t\u1edd gi\u1ea5y nguy\u00ean th\u00e0nh \u0111\u00f4i r\u1ed3i l\u1ea1i ti\u1ebfp t\u1ee5c g\u1ea5p \u0111\u00f4i, g\u1ea5p \u0111\u00f4i theo c\u00e1c chi\u1ec1u \u0111\u1ebfn khi \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u1ee1 \u0111\u00e3 ch\u1ecdn. B\u1eb1ng c\u00e1ch \u0111\u00f3 ng\u01b0\u1eddi ta s\u1ebd thu \u0111\u01b0\u1ee3c c\u00e1c quy\u1ec3n s\u00e1ch c\u00f3 c\u00e1c trang gi\u1ea5y \u0111\u1ed3ng d\u1ea1ng v\u00e0 gi\u1eef nguy\u00ean t\u1ec9 l\u1ec7 v\u1ec1 \u0111\u1ed9 r\u1ed9ng, \u0111\u1ed9 d\u00e0i c\u1ee7a trang s\u00e1ch d\u00f9 c\u00e1c trang s\u00e1ch c\u00f3 to nh\u1ecf kh\u00e1c nhau. Gi\u1ea3 s\u1eed trang gi\u1ea5y l\u00e0 h\u00ecnh ch\u1eef nh\u1eadt c\u00f3 chi\u1ec1u d\u00e0i l\u00e0 a, chi\u1ec1u r\u1ed9ng l\u00e0 b, sau khi c\u1eaft \u0111\u00f4i theo chi\u1ec1u ngang, ta c\u00f3 h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi chi\u1ec1u d\u00e0i b v\u00e0 chi\u1ec1u r\u1ed9ng . C\u0103n c\u1ee9 theo y\u00eau c\u1ea7u ng\u01b0\u1eddi ta ti\u1ebfp t\u1ee5c c\u1eaft ngang v\u00e0 thu \u0111\u01b0\u1ee3c trang gi\u1ea5y v\u1edbi k\u00edch th\u01b0\u1edbc \u0111\u00e3 ch\u1ecdn \u0111\u1ed3ng d\u1ea1ng v\u1edbi trang gi\u1ea5y ban \u0111\u1ea7u nh\u01b0ng c\u00f3 k\u00edch th\u01b0\u1edbc theo t\u1ec9 l\u1ec7 ch\u1ecdn tr\u01b0\u1edbc. v\u00e0 do v\u1eady a2 = 2b2 v\u00e0 a\/b = \u221a2<\/p>\n\n\n\n
T\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 th\u1ea5y t\u1ec9 l\u1ec7 c\u1ee7a b\u1ec1 d\u00e0i v\u00e0 b\u1ec1 r\u1ed9ng c\u1ee7a trang s\u00e1ch l\u00e0 \u221a2, nh\u1edd \u0111\u00f3 m\u00e0 sau khi c\u1eaft nh\u1ecf t\u1eeb trang l\u1edbn, c\u00e1c trang nh\u1ecf s\u1ebd \u0111\u1ed3ng d\u1ea1ng v\u1edbi trang ban \u0111\u1ea7u.<\/p>\n\n\n\n
T\u1eeb kho\u00e1: Hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ed3ng d\u1ea1ng.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Ch\u1eafc ch\u1eafn kh\u00f4ng \u00edt ng\u01b0\u1eddi v\u1eabn hay ngh\u0129 \u0111\u1ebfn \u201ccon s\u1ed1 t\u1ec9 l\u1ec7 v\u00e0ng\u201d 1,618. S\u1ef1 th\u1ef1c kh\u00f4ng ph\u1ea3i nh\u01b0 v\u1eady. K\u00edch th\u01b0\u1edbc m\u1ed9t quy\u1ec3n s\u00e1ch n\u00f3i chung do k\u00edch th\u01b0\u1edbc c\u1ee7a trang gi\u1ea5y nguy\u00ean (c\u1ee1 gi\u1ea5y theo ti\u00eau chu\u1ea9n s\u1ea3n xu\u1ea5t gi\u1ea5y: A0, A1\u2026) c\u1eaft ra m\u00e0 c\u00f3. V\u00ed d\u1ee5 kh\u1ed5 gi\u1ea5y c\u1ee1 32 […]<\/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-7497","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\/7497","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=7497"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7497\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7497"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7497"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7497"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}