如图所示,在扇形OAB中,∠AOB=90°,半径OA=4,点F位于弧AB的
处,且靠近点A的位置.点C、D分别在线段OA、OB上,CD=4,E为CD的中点,连接EF、BE.在CD滑动过程中(CD长度始终保持不变),当EF取最小值时,阴影部分的面积为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://img.xkw.com/dksih/QBM/2022/4/21/2963123523878912/2964548353400832/STEM/09c27d2a-6075-4d70-a6b3-dd2c849237cf.png?resizew=124)
更新时间:2022-04-23 20:51:58
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