如图,
、
是
中关于直径
对称的两条弦,以弦
、
为折线将弧
,弧
折叠后过圆心O,若
的半径
,则圆中阴影部分的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5900719c2da83d76bef8c7a0abdf82.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/26/94cd908c-703c-48e5-96fd-be8e1784455f.png?resizew=145)
2023·重庆九龙坡·二模 查看更多[3]
2023年重庆市育才中学教育集团中考二模数学试题(已下线)专题24 阴影部分面积(43道)-学易金卷:5年(2019-2023)中考1年模拟数学真题分项汇编(重庆专用)(已下线)中考热点07 求阴影部分面积填空类(5题型+满分技巧+限时检测)-2024年中考数学【热点·重点·难点】专练(重庆专用)
更新时间:2023-05-20 18:01:13
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【推荐1】已知如图,
所在圆的圆心是点
,分别在
、线段
和
上选取点
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65de7df1f800ffc146a96612aaa8fea.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f40560c8fcab2773edb27371bde4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc06eeb4b000468ecbb90de5ad165086.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/21/fa6fec5f-96d0-435d-8b78-56367b51c433.png?resizew=169)
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【推荐2】如图,以
为直径的
与
相切于点
,以
为边作平行四边形
,点D、E均在
上,
与
交于点
,连接
,与
交于点
,连接
.若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770b6a09b449004215d0caeeb0d63247.png)
______ .![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e12dab696d2aaf34d3a659eaa7aa59d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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【推荐1】如图,
是半圆
的直径,
是弦,点
为
上一点,以点
为圆心,
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于另一点
,与
相切于点
.若
,
,则图中阴影部分的面积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐2】如图,矩形
中,
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【推荐1】将三角形纸片(
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落在边
上,记为点
,折痕为
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【推荐2】菱形
中,
,E,F分别在
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__________ .
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