如图,在四边形
中,
,
,
,以
中点
为圆心作弧
及弧
,动点
从
点出发沿线段
,弧
,弧
,线段
的路线运动,点
从点C运动到点
时,线段
扫过的面积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3798a74058ec4bc40b6d9b5d268c359b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3896be7150df9588cdf89bc62ccc7fca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a7b5adfcac0f46a4cd19da4ebb4a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e52a8f07834cbbbe4224962672fbbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
23-24九年级上·浙江·期末 查看更多[2]
浙江省浙派·振兴联盟2023-2024学年九年级上学期期末数学试题(已下线)易错压轴02+圆与相关的计算2(十大易错压轴题型+举一反三+易错题通关)-备战2024年中考数学考试易错题(全国通用)
更新时间:2024-01-28 21:41:50
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【知识点】 求其他不规则图形的面积
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【推荐1】如图,正方形ABCD的边长为4,分别以正方形的三边为直径在正方形内部作半圆,则阴影部分的面积之和是( )
![](https://img.xkw.com/dksih/QBM/2020/4/10/2438252361719808/2438520021532672/STEM/9829e1c7176441c6ab59b1dca31af15d.png?resizew=129)
![](https://img.xkw.com/dksih/QBM/2020/4/10/2438252361719808/2438520021532672/STEM/9829e1c7176441c6ab59b1dca31af15d.png?resizew=129)
A.8 | B.4 | C.16π | D.4π |
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【推荐2】如图,平面图形
由直角边长为1的等腰直角
和扇形
组成,点
在线段
上,
,且
交
或交
于点
.设
,图中阴影部分表示的平面图形
(或
)的面积为
,则函数
关于
的大致图象是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/54244bf8-9b57-47d6-bf1e-7ae82f53aa9d.png?resizew=209)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372629a8666de1e9bac3e7daadcac7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/564743a1fe463a981f06914e3cb5e03e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84733f9dc908ceb11459cc2aed580ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b758913f0b039bba68f657380e1f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a0e9106eaf6c2bb11ed6e0a97181f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1de7da3ab92e70f135ea628a691167.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bddc68ed03fe7fd1fe30a5e626ba435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/9/54244bf8-9b57-47d6-bf1e-7ae82f53aa9d.png?resizew=209)
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