已知:如图,在等腰梯形ABCD中,AD∥BC,AB=DC,过点D作AC的平行线DE,交BA的延长线于点E.求证:
![](https://img.xkw.com/dksih/QBM/2014/4/30/1571696661061632/1571696666591232/STEM/5017d5fc40b341f2be9a7d118199cc2d.png)
(1)△ABC≌△DCB;
(2)DE·DC=AE·BD.
![](https://img.xkw.com/dksih/QBM/2014/4/30/1571696661061632/1571696666591232/STEM/5017d5fc40b341f2be9a7d118199cc2d.png)
(1)△ABC≌△DCB;
(2)DE·DC=AE·BD.
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更新时间:2016-11-30 05:37:36
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【知识点】 几何证明选讲
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