Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n<\/p>\n<\/div>\n
C\u00e2u 6. (1,0 \u0111i\u1ec3m)<\/strong>Trong kh\u00f4ng gian h\u00ecnh ch\u00f3p S.ABCD, t\u1ee9 gi\u00e1c ABCD l\u00e0 h\u00ecnh thang c\u00e2n, hai \u0111\u1ea5y l\u00e0 BC v\u00e0 AD. Bi\u1ebft SA = a\u221a2, AD = 2a, AB = BC = CD = a. H\u00ecnh chi\u1ebfu vu\u00f4ng g\u00f3c c\u1ee7a S tr\u00ean m\u1eb7t ph\u1eb3ng ABCD tr\u00f9ng v\u1edbi trung \u0111i\u1ec3m c\u1ea1nh AD. T\u00ednh theo a th\u1ec3 t\u00edch kh\u1ed1i ch\u00f3p S.ABCD v\u00e0 kho\u1ea3ng c\u00e1ch gi\u1eefa hai \u0111\u01b0\u1eddng th\u1eb3ng SB v\u00e0 AD.<\/p>\n C\u00e2u 7. (1,0 \u0111i\u1ec3m)<\/strong>Trong m\u1eb7t ph\u1eb3ng Oxy, cho h\u00ecnh vu\u00f4ng ABCD c\u00f3 M(2; -5\/2) l\u00e0 trung \u0111i\u1ec3m c\u1ee7a AB, tr\u1ecdng t\u00e2m c\u1ee7a tam gi\u00e1c ACD l\u00e0 \u0111i\u1ec3m G (3;2). T\u00ecm t\u1ecda \u0111\u1ed9 c\u00e1c \u0111\u1ec9nh c\u1ee7a h\u00ecnh vu\u00f4ng ABCD, bi\u1ebft B c\u00f3 ho\u00e0nh \u0111\u1ed9 d\u01b0\u01a1ng.<\/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":" \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n n\u0103m 2016 c\u1ee7a tr\u01b0\u1eddng THPT Hi\u1ec7p H\u00f2a s\u1ed1 1, t\u1ec9nh B\u1eafc Giang \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u1ee9 t\u01b0, ng\u00e0y 4\/11\/2015. Xem th\u00eam: \u0110\u1ec1 thi th\u1eed THPT Qu\u1ed1c gia m\u00f4n To\u00e1n C\u00e2u 6. (1,0 \u0111i\u1ec3m)Trong kh\u00f4ng gian h\u00ecnh ch\u00f3p S.ABCD, t\u1ee9 gi\u00e1c ABCD l\u00e0 h\u00ecnh thang c\u00e2n, hai \u0111\u1ea5y […]<\/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