已知扇形的面积是
,半径是
,则扇形的圆心角的弧度数是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ded1478357e9d3fe9f1afa88d112462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c78d0ab561d0c9bb9099772c596af8bf.png)
更新时间:2023-07-08 10:03:42
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