如图,在等边三角形ABC中,AB=8,点P是BC边上的动点,点P关于直线AB、AC的对称点分别为M、N,作
,垂足为D,作
,垂足为E,则DE的长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4d54b7ff95f2bb56fc6f7979fae83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7dc8d01b1be29ccb6542f76f739348c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/5/e61bee7a-f3b2-4496-b3b5-2ca392920248.png?resizew=216)
更新时间:2022-10-02 13:47:28
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【推荐1】如图,△ABC中,AB=AC=10,∠A=30°.BD是△ABC的边AC上的高,点P是BD上动点,则
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【推荐2】如图,在平面直角坐标系中,
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【推荐1】如图,
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【推荐2】如图,将等边
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