AB=DC,DF=BE,AF=CE,求证:(1)△ABE≌CDF;(2)DC∥AB.
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ab=dc,df=be,af=ce 求证△abe≌△cDF D0∥AB
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AB=DC,DF=BE,AF=CE,求证:(1)△ABE≌CDF;(2)DC∥AB.
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