(2011•淮安)如图,四边形ABCD是平行四边形,E、F分别是BC.AD上的

(2011•淮安)如图,四边形ABCD是平行四边形,E、F分别是BC.AD上的点,∠1=∠2求证:△ABE≌△CDF.

答案

证明:∵四边形ABCD是平行四边形,
∴∠B=∠D,AB=CD,
∴在:△ABE与△CDF中,

∴△ABE≌△CDF(ASA)解析:

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