如图,边长为1的正方形
的顶点
在扇形
的半径
上,点
在
上,点
在
上,若
,则扇形
的面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2935a591c968df92a8cdd2bf09d96452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da6b93dbe5272a5167ff4e2918bec864.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e124a392dc84fcc1662fe6d896aa12.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/19/a953efce-8411-415f-8a39-2ebadea427a4.png?resizew=130)
更新时间:2023-10-19 14:34:28
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