来自龚声蓉的问题
如图,已知∠B=∠E=90°,AC=DF,BF=EC.求证:△ABC≌△DEF.
如图,已知∠B=∠E=90°,AC=DF,BF=EC.求证:△ABC≌△DEF.
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2020-03-08 18:26
如图,已知∠B=∠E=90°,AC=DF,BF=EC.求证:△ABC≌△DEF.
如图,已知∠B=∠E=90°,AC=DF,BF=EC.求证:△ABC≌△DEF.
∵BF=EC,
∴BF+CF=EC+CF,
即BC=EF,
在Rt△ABC和Rt△DEF中,
∵
AC=DFBC=EF