Tr\u01b0\u1eddng THPT \u0110\u1ecbnh H\u00f3a t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho h\u1ecdc sinh kh\u1ed1i 12 t\u1ea1i tr\u01b0\u1eddng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n g\u1ed3m 8 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau:<\/strong><\/h2>\n\nXem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u 5:<\/strong> Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng, G l\u00e0 tr\u1ecdng t\u00e2m c\u1ee7a tam gi\u00e1c BCD. H\u00ecnh chi\u1ebfu vu\u00f4ng g\u00f3c c\u1ee7a S l\u00ean mp(ABCD) l\u00e0 G. Bi\u1ebft SA = 2a\u221a6 v\u00e0 t\u1ea1o v\u1edbi \u0111\u00e1y (ABCD) m\u1ed9t g\u00f3c 60<\/p>\n0<\/dd>\n.<\/p>\n
a) T\u00ednh th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh ch\u00f3p S.ABCD.<\/p>\n
b) T\u00ednh kho\u1ea3ng c\u00e1ch gi\u1eefa SA v\u00e0 BG.<\/p>\n
C\u00e2u 7:<\/strong> Trong m\u1eb7t ph\u1eb3ng (Oxy). Cho tam gi\u00e1c ABC c\u00e2n t\u1ea1i A, D l\u00e0 trung \u0111i\u1ec3m c\u1ee7a AB. Bi\u1ebft r\u1eb1ng I(11\/3;5\/3), E(13\/3; 5\/3) l\u1ea7n l\u01b0\u1ee3t l\u00e0 t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n ngo\u1ea1i ti\u1ebfp tam gi\u00e1c ABC, tr\u1ecdng t\u00e2m tam gi\u00e1c ADC. C\u00e1c \u0111i\u1ec3m M(3;-1), N(-3;0) l\u1ea7n l\u01b0\u1ee3t thu\u1ed9c DC, AB. T\u00ecm t\u1ecda \u0111\u1ed9 c\u00e1c \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c ABC bi\u1ebft A c\u00f3 tung \u0111\u1ed9 d\u01b0\u01a1ng.<\/p>\n ![](\"http:\/\/img.toanhoc247.com\/picture\/2015\/1208\/de-thi-thu-thpt-quoc-gia-toan-2016-dinh-hoa-1-result.jpg\")
<\/p>\n
T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":"Tr\u01b0\u1eddng THPT \u0110\u1ecbnh H\u00f3a t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho h\u1ecdc sinh kh\u1ed1i 12 t\u1ea1i tr\u01b0\u1eddng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n g\u1ed3m 8 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 5: Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n
\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1\" \/>\n<meta property=\"og:description\" content=\"Tr\u01b0\u1eddng THPT \u0110\u1ecbnh H\u00f3a t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho h\u1ecdc sinh kh\u1ed1i 12 t\u1ea1i tr\u01b0\u1eddng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n g\u1ed3m 8 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 5: Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/\" \/>\n<meta property=\"og:site_name\" content=\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam\" \/>\n<meta property=\"article:author\" content=\"www.facebook.com\/lop12.edu.vn\/\" \/>\n<meta property=\"article:published_time\" content=\"2016-03-19T22:49:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2016-03-20T15:52:29+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/img.toanhoc247.com\/picture\/2015\/1208\/de-thi-thu-thpt-quoc-gia-toan-2016-dinh-hoa-1-result.jpg\" \/>\n<meta name=\"author\" content=\"Lop12\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Lop12\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/\",\"url\":\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/\",\"name\":\"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1\",\"isPartOf\":{\"@id\":\"https:\/\/lop12.edu.vn\/#website\"},\"datePublished\":\"2016-03-19T22:49:57+00:00\",\"dateModified\":\"2016-03-20T15:52:29+00:00\",\"author\":{\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/8219caa3d91a087a4ce81b8b5ac734b5\"},\"breadcrumb\":{\"@id\":\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/lop12.edu.vn\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a – L\u1ea7n 1\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/lop12.edu.vn\/#website\",\"url\":\"https:\/\/lop12.edu.vn\/\",\"name\":\"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/lop12.edu.vn\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/8219caa3d91a087a4ce81b8b5ac734b5\",\"name\":\"Lop12\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/65b2897b6a31b932be1276ba7fc18d41?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/65b2897b6a31b932be1276ba7fc18d41?s=96&d=mm&r=g\",\"caption\":\"Lop12\"},\"sameAs\":[\"http:\/\/www.lop12.edu.vn\",\"www.facebook.com\/lop12.edu.vn\/\"],\"url\":\"https:\/\/lop12.edu.vn\/author\/hungld\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/","og_locale":"en_US","og_type":"article","og_title":"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1","og_description":"Tr\u01b0\u1eddng THPT \u0110\u1ecbnh H\u00f3a t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho h\u1ecdc sinh kh\u1ed1i 12 t\u1ea1i tr\u01b0\u1eddng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n g\u1ed3m 8 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 5: Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 […]","og_url":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/","og_site_name":"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12 l\u1edbn nh\u1ea5t t\u1ea1i Vi\u1ec7t Nam","article_author":"www.facebook.com\/lop12.edu.vn\/","article_published_time":"2016-03-19T22:49:57+00:00","article_modified_time":"2016-03-20T15:52:29+00:00","og_image":[{"url":"http:\/\/img.toanhoc247.com\/picture\/2015\/1208\/de-thi-thu-thpt-quoc-gia-toan-2016-dinh-hoa-1-result.jpg"}],"author":"Lop12","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Lop12","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/","url":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/","name":"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a - L\u1ea7n 1","isPartOf":{"@id":"https:\/\/lop12.edu.vn\/#website"},"datePublished":"2016-03-19T22:49:57+00:00","dateModified":"2016-03-20T15:52:29+00:00","author":{"@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/8219caa3d91a087a4ce81b8b5ac734b5"},"breadcrumb":{"@id":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/lop12.edu.vn\/de-thi-thu-thpt-quoc-gia-mon-toan-2016-thpt-dinh-hoa-lan-1\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/lop12.edu.vn\/"},{"@type":"ListItem","position":2,"name":"\u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n 2016 THPT \u0110\u1ecbnh H\u00f3a – L\u1ea7n 1"}]},{"@type":"WebSite","@id":"https:\/\/lop12.edu.vn\/#website","url":"https:\/\/lop12.edu.vn\/","name":"Lop12.edu.vn - C\u1ed9ng \u0111\u1ed3ng h\u1ecdc sinh l\u1edbp 12","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/lop12.edu.vn\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/8219caa3d91a087a4ce81b8b5ac734b5","name":"Lop12","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/lop12.edu.vn\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/65b2897b6a31b932be1276ba7fc18d41?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/65b2897b6a31b932be1276ba7fc18d41?s=96&d=mm&r=g","caption":"Lop12"},"sameAs":["http:\/\/www.lop12.edu.vn","www.facebook.com\/lop12.edu.vn\/"],"url":"https:\/\/lop12.edu.vn\/author\/hungld\/"}]}},"_links":{"self":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/1445"}],"collection":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/comments?post=1445"}],"version-history":[{"count":0,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/posts\/1445\/revisions"}],"wp:attachment":[{"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/media?parent=1445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/categories?post=1445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lop12.edu.vn\/wp-json\/wp\/v2\/tags?post=1445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u 5:<\/strong> Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 h\u00ecnh vu\u00f4ng, G l\u00e0 tr\u1ecdng t\u00e2m c\u1ee7a tam gi\u00e1c BCD. H\u00ecnh chi\u1ebfu vu\u00f4ng g\u00f3c c\u1ee7a S l\u00ean mp(ABCD) l\u00e0 G. Bi\u1ebft SA = 2a\u221a6 v\u00e0 t\u1ea1o v\u1edbi \u0111\u00e1y (ABCD) m\u1ed9t g\u00f3c 60<\/p>\n .<\/p>\n a) T\u00ednh th\u1ec3 t\u00edch c\u1ee7a h\u00ecnh ch\u00f3p S.ABCD.<\/p>\n b) T\u00ednh kho\u1ea3ng c\u00e1ch gi\u1eefa SA v\u00e0 BG.<\/p>\n C\u00e2u 7:<\/strong> Trong m\u1eb7t ph\u1eb3ng (Oxy). Cho tam gi\u00e1c ABC c\u00e2n t\u1ea1i A, D l\u00e0 trung \u0111i\u1ec3m c\u1ee7a AB. Bi\u1ebft r\u1eb1ng I(11\/3;5\/3), E(13\/3; 5\/3) l\u1ea7n l\u01b0\u1ee3t l\u00e0 t\u00e2m \u0111\u01b0\u1eddng tr\u00f2n ngo\u1ea1i ti\u1ebfp tam gi\u00e1c ABC, tr\u1ecdng t\u00e2m tam gi\u00e1c ADC. C\u00e1c \u0111i\u1ec3m M(3;-1), N(-3;0) l\u1ea7n l\u01b0\u1ee3t thu\u1ed9c DC, AB. T\u00ecm t\u1ecda \u0111\u1ed9 c\u00e1c \u0111\u1ec9nh c\u1ee7a tam gi\u00e1c ABC bi\u1ebft A c\u00f3 tung \u0111\u1ed9 d\u01b0\u01a1ng.<\/p>\n T\u1ea5t c\u1ea3 n\u1ed9i dung b\u00e0i vi\u1ebft. C\u00e1c em h\u00e3y xem th\u00eam v\u00e0 t\u1ea3i file chi ti\u1ebft t\u1ea1i \u0111\u00e2y:<\/strong>Download<\/p>\n","protected":false},"excerpt":{"rendered":" Tr\u01b0\u1eddng THPT \u0110\u1ecbnh H\u00f3a t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia l\u1ea7n 1 n\u0103m 2016 cho h\u1ecdc sinh kh\u1ed1i 12 t\u1ea1i tr\u01b0\u1eddng. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n g\u1ed3m 8 c\u00e2u c\u1ee5 th\u1ec3 nh\u01b0 sau: Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 5: Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y l\u00e0 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n<\/p>\n