到
的三边距离相等的点是
的______ ;到
的三个顶点距离相等的点是
的______ .(填写序号即可:①三条中线的交点;②三条内角平分线的交点;③三条高线的交点;④三条边的垂直平分线的交点)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
更新时间:2022-02-11 10:39:38
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【推荐1】如图,在
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【推荐2】如图,在
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【推荐1】如图,△ABC中,∠C=90°,DB是∠ABC的平分线,点E是AB的中点,且DE⊥AB,若BC=5cm,则AB=____ cm.
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