问题补充:
已知:如图1,△AOB和△COD,OB:OA:AB = 1 :k :m,OD:OC:CD = 1:k:m,∠COD=α连结AD,BC,取AD,BC中点N,M.探究:MN:AC的值.
答案:
已知:如图1,△AOB和△COD,OB:OA:AB = 1 :k :m,OD:OC:CD = 1:k:m,∠COD=α连结AD,BC,取AD,BC中点N,M.探究:MN:AC的值.(图2)
时间:2021-03-21 04:55:55
已知:如图1,△AOB和△COD,OB:OA:AB = 1 :k :m,OD:OC:CD = 1:k:m,∠COD=α连结AD,BC,取AD,BC中点N,M.探究:MN:AC的值.
已知:如图1,△AOB和△COD,OB:OA:AB = 1 :k :m,OD:OC:CD = 1:k:m,∠COD=α连结AD,BC,取AD,BC中点N,M.探究:MN:AC的值.(图2)