如图,在
中,
,
,
.则
的长度是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/8b15ce6e-7332-4ba7-a410-4ebd9f5c8c61.png?resizew=202)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e3262fc038bbec5e7c8cc47df08bef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d3c9ce32b721995f355eea411340e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/27/8b15ce6e-7332-4ba7-a410-4ebd9f5c8c61.png?resizew=202)
A.3 | B.3.5 | C.2.5 | D.2 |
更新时间:2022-11-25 16:56:24
|
【知识点】 含30度角的直角三角形解读
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