如图：已知AB平分∠CBD，BC=BD，试说明：AC=AD．_刷题宝

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如图：已知AB平分∠CBD，BC=BD，试说明：AC=AD．

上一题下一题 0.0难度选择题更新时间:2017-09-12 11:02:17

答案(点此获取答案解析）

证明：∵AB平分∠CBD，

∴∠ABC=∠ABD，

在△ABC和△ABD中

${\begin{matrix} B C = B D \end{matrix}$

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