如图,在
中,
的垂直平分线交
于点D,如果
的周长
,那么![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3849aadee9188c4e19790fab43780e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d51b21602ca6906279ecb645bfd12fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efa9fbcfb9595e2f031aa691db4564b.png)
![](https://img.xkw.com/dksih/QBM/2021/12/9/2868809391693824/2870218995195904/STEM/2c3c79fa-41bd-46c4-9f12-d47a9c18de21.png?resizew=128)
更新时间:2021-12-11 14:18:24
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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1】如图,在
中,
.分别以点A和点C为圆心,大于
的长为半径画弧,两弧相交于点E,F,作直线
,交
于点D,连接
,则
的度数为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f36bfe5b94394d44c07e5439dbec673.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93148adbc6e856da9a9d263f485d003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/23/94395ae8-8be7-41c6-8056-a5d78bb68fdb.png?resizew=189)
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【推荐2】如图,△ABC中,DE是AC的垂直平分线,AE=5cm,△ABD的周长为14cm,则△ABC的周长为________ cm.
![](https://img.xkw.com/dksih/QBM/2019/2/28/2150478103429120/2151339871084544/STEM/3121d0999ff748a2b99db11a8871567e.png?resizew=176)
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