(1)∵∠DCE=∠BAE,∠CED=∠ABC=∠ACB=∠AEB∴∠D=∠ABE∴△ABE≌△CDE(2)∵AE=CE∴∠D=∠ABE=∠ACE=CAE∴△FAE∽△CDE∴EF:AE=CE:DE
给下图
