如图
,分别以各边为直径作半圆,图中阴影部分在数学史上称为“希波克拉底月牙”:当
时,则阴影部分的面积为 ____________________ (用含有
的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b495222a44f26dbbe34c12098c269dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b65021292a91f8457d083b6ad7443aa1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9a340286faf644ce62e8f342dfaadb.png)
![](https://img.xkw.com/dksih/QBM/2024/1/20/3415463034183680/3433643511611392/STEM/d837f6050af6455da403c63b7808fb81.png?resizew=150)
更新时间:2024-03-02 18:59:12
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【推荐2】如图,已知扇形AOB的圆心角为90°,C是半径OA的中点,过C作CD⊥OA 交
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