三角形相似复习

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三角形相似复习. 例 1 、已知 AB⊥DB 于点 B,CD⊥DB 于点 D,AB=6 ， CD=4 ， BD=14. 在 DB 上是否存在点 P ，使得 C 、 D 、 P 为顶点的三角形与以 P 、 B 、 A 为顶点的三角形相似 ? 如果存在 , 求出 DP 长 ; 如果不存在 , 请说明理由.

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Mar 18, 2014

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三角形相似复习

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