... ; BP = CB (gt)2 2 AB = BC (gt) Ba) M, N lÇn lît lµ trung ®iÓm cña AB, ACMN lµ ®êng trung b × nh cñahayMµMNPB lµ h × nh b × nh hµnh ãMµ (1 )c ⇒MMNP ( B = BP 2 (2 ) ) (1 lµ h × ... / ).< Mét sè chó ý: 1)PhÇn trß ch¬i:(tõ slide 3 ®Õn slide 8) 7M7" 86 )9MN$)6L-:Ml+:9MN,4<`#19))]6)#*+Ml ... 71s#$2&-K)"!+MN>,T,2U2G/u$1G+:-"!+vv[vdAbi$XXXH#>?PH0!+L N-- 8 #^2&P<PPH6)e ")Z-6,T7 Bµi tËp 87 (trang 111 SGK):PPPH_!+5U+Bµi 1:Bµi...