题目内容：

延长线段MN到P,使NP=MN,则MN=()MP,MP=()NP
步骤

优质解答

因为,
MP = MN+NP = MN+MN = 2MN ,
MP = MN+NP = NP+NP = 2NP ,
所以,
MN = (1/2)MP ,MN = (2)NP .