Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u IV (1,0 \u0111i\u1ec3m).<\/strong><\/p>\n M\u1ed9t l\u1edbp h\u1ecdc c\u00f3 35 h\u1ecdc sinh, c\u1ea7n l\u1eadp ra ban ch\u1ea5p h\u00e0nh \u0110o\u00e0n g\u1ed3m 1 b\u00ed th\u01b0, 1 ph\u00f3 b\u00ed th\u01b0 v\u00e0 3 \u1ee7y vi\u00ean. H\u1ecfi c\u00f3 bao nhi\u00eau c\u00e1ch l\u1eadp?<\/p>\n C\u00e2u V (1,0 \u0111i\u1ec3m)<\/strong><\/p>\n Cho h\u00ecnh ch\u00f3p S.ABCD c\u00f3 \u0111\u00e1y ABCD l\u00e0 h\u00ecnh ch\u1eef nh\u1eadt v\u1edbi AB = a, AD = 2a, c\u1ea1nh SA vu\u00f4ng g\u00f3c v\u1edbi m\u1eb7t ph\u1eb3ng \u0111\u00e1y, c\u1ea1nh SB t\u1ea1o v\u1edbi m\u1eb7t ph\u1eb3ng \u0111\u00e1y m\u1ed9t g\u00f3c 600. Tr\u00ean c\u1ea1nh SA l\u1ea5y \u0111i\u1ec3m M sao cho AM = a\u221a3\/3. M\u1eb7t ph\u1eb3ng (BCM) c\u1eaft SD t\u1ea1i \u0111i\u1ec3m N. T\u00ednh th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p S.BCNM.<\/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":" Tr\u01b0\u1eddng THPT \u0110\u00e0o Duy T\u1eeb t\u1ed5 ch\u1ee9c thi th\u1eed THPT Qu\u1ed1c gia n\u0103m 2016 l\u1ea7n th\u1ee9 3 cho h\u1ecdc sinh kh\u1ed1i l\u1edbp 12 th\u1eed s\u1ee9c v\u1edbi \u0111\u1ec1 thi th\u1eed m\u00f4n To\u00e1n 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 IV (1,0 \u0111i\u1ec3m). M\u1ed9t l\u1edbp h\u1ecdc c\u00f3 35 h\u1ecdc […]<\/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