如图,已知线段
上有两点C,D,且
,E,F分别为
,
的中点,
cm,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
__________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2532ac211543002f2065bfbcd7d1637d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d97dc3b752832906de41447bb58a341.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec67259153551e67bb3e035d11dc9334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72026e70f45cea6a7c49881592e73a02.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/8/3b610157-88f7-488f-9cb6-574fcb6ebbc7.png?resizew=262)
更新时间:2024-02-08 10:41:53
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/21/cdf64a5c-dcc0-49a9-980b-067c69c0bf50.png?resizew=354)
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