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Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n

C\u00e2u 4. (1,5 \u0111i\u1ec3m)<\/strong>Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y ABCD l\u00e0 h\u00ecnh vu\u00f4ng c\u1ea1nh a. G\u1ecci M l\u00e0 trung \u0111i\u1ec3m c\u1ee7a \u0111o\u1ea1n AB. Bi\u1ebft hai m\u1eb7t ph\u1eb3ng (SMC), (SMD) c\u00f9ng vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng (ABCD) v\u00e0 g\u00f3c t\u1ea1o b\u1edfi \u0111\u01b0\u1eddng th\u1eb3ng SC v\u1edbi m\u1eb7t \u0111\u00e1y b\u1eb1ng 60<\/p>\n

0<\/dd>\n
. T\u00ednh theo a th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p S.ABCD v\u00e0 kho\u1ea3ng c\u00e1ch t\u1eeb \u0111i\u1ec3m B \u0111\u1ebfn m\u1eb7t ph\u1eb3ng (SCD).<\/p>\n
C\u00e2u 5. (1,0 \u0111i\u1ec3m)<\/strong>Tr\u00ean m\u1eb7t ph\u1eb3ng Oxy, cho h\u00ecnh vu\u00f4ng ABCD. G\u1ecdi M l\u00e0 \u0111i\u1ec3m thu\u1ed9c c\u1ea1nh BC. \u0110\u01b0\u1eddng tr\u00f2n \u0111\u01b0\u1eddng k\u00ednh AM c\u1eaft BC t\u1ea1i B, c\u1eaft BD t\u1ea1i N(6;2). T\u00ecm t\u1ecda \u0111\u1ed9 c\u00e1c \u0111i\u1ec3m A v\u00e0 C, bi\u1ebft M (5;7); \u0111\u1ec9nh C thu\u1ed9c \u0111\u01b0\u1eddng th\u1eb3ng d: x + y \u2013 4 = 0, ho\u00e0nh \u0111\u1ed9 \u0111i\u1ec3m C nguy\u00ean v\u00e0 \u0111i\u1ec3m A c\u00f3 ho\u00e0nh \u0111\u1ed9 b\u00e9 h\u01a1n 2.<\/p>\n
<\/p>\n<\/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":"
C\u00e1c em tham kh\u1ea3o \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia 2016 m\u00f4n To\u00e1n \u0111\u01b0\u1ee3c tr\u01b0\u1eddng THPT L\u1ee5c Ng\u1ea1n s\u1ed1 1, t\u1ec9nh B\u1eafc Giang t\u1ed5 ch\u1ee9c thi th\u1eed \u0111\u1ee3t th\u00e1ng 10\/2015 g\u1ed3m 7 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 4. (1,5 \u0111i\u1ec3m)Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 […]<\/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 L\u1ee5c Ng\u1ea1n s\u1ed1 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-luc-ngan-so-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 L\u1ee5c Ng\u1ea1n s\u1ed1 1\" \/>\n<meta property=\"og:description\" content=\"C\u00e1c em tham kh\u1ea3o \u0111\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia 2016 m\u00f4n To\u00e1n \u0111\u01b0\u1ee3c tr\u01b0\u1eddng THPT L\u1ee5c Ng\u1ea1n s\u1ed1 1, t\u1ec9nh B\u1eafc Giang t\u1ed5 ch\u1ee9c thi th\u1eed \u0111\u1ee3t th\u00e1ng 10\/2015 g\u1ed3m 7 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 4. 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