如图,在
中,BC的垂直平分线分别交BC、AB于点E、F.若
cm,
周长为12cm,则
的周长为______ cm.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adaead91b4b6febfcdd6f995d81e550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54fb6e81fee5674c3e26a65e58cc506d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/2021/11/13/2849979167162368/2853330144772096/STEM/3f185d1d-4dda-4586-bd87-257dc5e0332a.png)
更新时间:2021-11-17 17:37:57
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【知识点】 线段垂直平分线的性质解读
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【推荐2】如图,在
中,
,
是
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于D、E,若
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____________ (用含
的代数式表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba48366317ebea1c9dd5e4e67e03092.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b6d0f3a7c7761e47c7121e302b994a.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/12/1a25e621-be48-47ea-8798-cf4863820763.png?resizew=149)
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