题目内容
如图,AB∥DE,AC∥DF,AC=DF,下列条件中不能判断△ABC≌△DEF的是( )
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A. AB=DE B.∠B=∠E C.EF=BC D. EF∥BC
C 解:∵AB∥DE,AC∥DF,∴∠A=∠D,
(1)AB=DE,则△ABC和△DEF中,
,∴△ABC≌△DEF,故A选项错误;
(2)∠B=∠E,则△ABC和△DEF中,
,∴△ABC≌△DEF,故B选项错误;
(3)EF=BC,无法证明△ABC≌△DEF(ASS);故C选项正确;
(4)∵EF∥BC,AB∥
DE,∴∠B=∠E,则△ABC和△DEF中,
,∴△ABC≌△DEF,故D选项错误;
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