如图,△ABC≌△ADE,∠B和∠D是对应角,那么根据__________可知AB=_____,AC=______,∠ACB=______.因为BE=AB-______,DC=AD-______,所以BE=____.因为∠BCD=_______-∠ACB,∠BED=_______-∠AED,所以∠BCD=_______.
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