\u0110\u1ec1 thi th\u1eed m\u00f4n To\u00e1n THPT Qu\u1ed1c gia 2017 – THPT Lam Kinh, t\u1ec9nh Thanh H\u00f3a t\u1ed5 ch\u1ee9c l\u1ea7n 1 c\u00f3 \u0111\u00e1p \u00e1n.<\/p>\n
C\u00e2u 24: Ng\u01b0\u1eddi ta x\u1ebfp 7 vi\u00ean bi c\u00f3 c\u00f9ng b\u00e1n k\u00ednh r v\u00e0o m\u1ed9t c\u00e1i l\u1ecd h\u00ecnh tr\u1ee5 sao cho t\u1ea5t c\u1ea3 c\u00e1c vi\u00ean bi \u0111\u1ec1u ti\u1ebfp x\u00fac v\u1edbi c\u1ea3 hai \u0111\u00e1y, vi\u00ean bi n\u1eb1m ch\u00ednh gi\u1eefa ti\u1ebfp x\u00fac v\u1edbi 6 vi\u00ean bi xung quanh v\u00e0 m\u1ed7i vi\u00ean bi xung quanh \u0111\u1ec1u ti\u1ebfp x\u00fac v\u1edbi c\u00e1c \u0111\u01b0\u1eddng sinh c\u1ee7a l\u1ecd h\u00ecnh tr\u1ee5. Khi \u0111\u00f3 di\u1ec7n t\u00edch 1 \u0111\u00e1y c\u1ee7a c\u00e1i l\u1ecd h\u00ecnh tr\u1ee5 l\u00e0: C. 9\u00a0\u03c0r2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/sup>D. 18\u00a0\u03c0r2<\/sup><\/p>\n <\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" \u0110\u1ec1 thi th\u1eed m\u00f4n To\u00e1n THPT Qu\u1ed1c gia 2017 – THPT Lam Kinh, t\u1ec9nh Thanh H\u00f3a t\u1ed5 ch\u1ee9c l\u1ea7n 1 c\u00f3 \u0111\u00e1p \u00e1n. C\u00e2u 24: Ng\u01b0\u1eddi ta x\u1ebfp 7 vi\u00ean bi c\u00f3 c\u00f9ng b\u00e1n k\u00ednh r v\u00e0o m\u1ed9t c\u00e1i l\u1ecd h\u00ecnh tr\u1ee5 sao cho t\u1ea5t c\u1ea3 c\u00e1c vi\u00ean bi \u0111\u1ec1u ti\u1ebfp x\u00fac v\u1edbi c\u1ea3 hai […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[28],"tags":[],"yoast_head":"\n
\nA. 16\u00a0\u03c0r2 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<\/sup>B. 36\u00a0\u03c0r2<\/sup><\/p>\n