1 . 如图,平行四边形ABCD中,
,
.将平行四边形ABCD绕点A逆时针旋转30°得到平行四边形
,此时点
恰好在BC边上,点C的运动路径为
,则图中阴影部分的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ce06dbe9e1177468781ba4aff85ffc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdd511e3eb724a9add64021b9b6f8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b3bd5e6bc2a0a277d279bb01af9584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c236cc0f297f86bef73b31fbfce3c8c.png)
![](https://img.xkw.com/dksih/QBM/2022/5/27/2988617472868352/2991457032847360/STEM/baf7c33c-44a2-441e-a834-a888a931189e.png?resizew=202)
您最近一年使用:0次
名校
2 . 如图,点C是半径为2的半圆上的点,
.长度为2的线段DE在直径AB上,当△CDE的周长最短时,阴影部分的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0099943024568222c20cf16ede1af66e.png)
![](https://img.xkw.com/dksih/QBM/2022/5/16/2980759163961344/2982028226822144/STEM/61c7e54f-4b3f-417f-ade0-fc31f67fb378.png?resizew=167)
您最近一年使用:0次
2022-05-18更新
|
179次组卷
|
2卷引用:2022年河南省名校联考九年级中考模拟考试(二)数学试题
3 . 如图,网格中的小正方形的边长均为1,点
,
,
都在小正方形的顶点上,点
为
上一动点,连接
,
,则图中阴影部分面积的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfe6ad3e9bcbea2cfe382c3e74628286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/cfb5a6fc-488f-48fa-860b-73fe11331165.png?resizew=298)
您最近一年使用:0次
2022·河南·一模
4 . 如图,在扇形
中,
,
,点C是
上一动点,连接
,过点A作
于点D,连接
.当
的长度最小时,图中阴影部分的面积为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3dfcd8aff269dd5aba398816490c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b9a2f5c9877086517ac6d0cd9e30af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://img.xkw.com/dksih/QBM/2022/4/11/2955858147868672/2955938670624768/STEM/91ce61fa-04ce-4349-89ab-190d3141e9aa.png?resizew=155)
您最近一年使用:0次
5 . 如图,在
中,
,
,
,点
在
上,连接
,过点
作
的垂线交
于点
,连接
,
的外接圆交直线
于点
圆心为
.
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951517403955200/2951659406368768/STEM/623276d1-e67b-4518-ac07-1f0a1ea9aeb1.png?resizew=252)
(1)若
平分
;
①判断
与
的位置关系,并说明理由;
②求出此时图中阴影部分的面积;
(2)若
,求
的直径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281b641656a5992abaafb4190ca9afc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e268b5d48f1be920502f98a9b4c709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1370d4c0ca64eed76b7dbdcf48358215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377f5c10cf527c87ab06bff61384f7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9c6a736e6eac98a676fa3232db5a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6c6e7c025362c46a64a8956761f08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefe4a3e7a7fa195ed6a6712447639b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be9f2c8cc327ec0032d04a3e788ff69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2022/4/5/2951517403955200/2951659406368768/STEM/623276d1-e67b-4518-ac07-1f0a1ea9aeb1.png?resizew=252)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
①判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
②求出此时图中阴影部分的面积;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4039f7b10f81573cb8ed7952a7bc51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9ccea461315a9d05aa0193b937d4bfe.png)
您最近一年使用:0次
2022-04-05更新
|
184次组卷
|
2卷引用:2022年河南省信阳市中考综合练习数学试题
6 . 如图,在矩形ABCD中,AB=
,BC=1,将矩形ABCD绕点A旋转得到矩形
,点C的运动路径为
,图中阴影部分的面积为 ___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdd511e3eb724a9add64021b9b6f8c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c236cc0f297f86bef73b31fbfce3c8c.png)
![](https://img.xkw.com/dksih/QBM/2022/3/7/2931333346066432/2938797631340544/STEM/c3677b35-1e99-44cf-9a11-b2884232a14e.png?resizew=225)
您最近一年使用:0次
2022-03-18更新
|
219次组卷
|
6卷引用:河南省洛阳市2019年中考数学二模试卷
河南省洛阳市2019年中考数学二模试卷(已下线)专题冲刺小卷08 图形与变换-2020年《三步冲刺中考·数学》之最新模考分类冲刺小卷(河南专用)(已下线)热点专题3 阴影部分面积的计算-2020年《三步冲刺中考·数学》之热点专题冲刺(河南专用)2021年河南省三门峡市中招第二次模拟考试数学试题2021年河南省南阳市方城县中考数学三模试卷新疆维吾尔自治区乌鲁木齐市新市区第五十六中学2022-2023学年九年级上学期期中数学试题
名校
7 . 如图1,是一枚残缺的古代钱币,如图2,经测量发现,钱币完好部分的弧长为3π,其内部正方形ABCD的边长为1.已知正方形ABCD的中心与⊙O的圆心重合,且点E,F分别是边BC,CD的延长线与⊙O的交点,则图中阴影部分的面积为__________________ .
您最近一年使用:0次
2022-03-09更新
|
343次组卷
|
3卷引用:2021年河南省百校联考中考数学模拟试卷(三)
真题
名校
8 . 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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](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)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-09-09更新
|
2252次组卷
|
9卷引用:河南省信阳市浉河区浉河中学2021-2022学年九年级上学期10月月考数学试题
河南省信阳市浉河区浉河中学2021-2022学年九年级上学期10月月考数学试题(已下线)2022年河南省济源市九年级中考第一次模拟考试数学试题变式题6-102021年山东省日照市中考真题数学试卷(已下线)押江苏南京中考数学第6题(规律探究、图形变化、几何与函数综合)-备战2022年中考数学临考题号押题(江苏南京专用)2022年宁夏石嘴山市平罗县初中学业水平模拟(一)数学试题2022年江苏省苏州新区实验初中九年级数学三模试题(已下线)2022年江苏省南通启东市九年级中考二模数学试题变式题6-10江苏省苏州市苏州中学校2023-2024学年九年级上学期10月月考数学试题31-与圆有关的计算
9 . 如图,扇形
的半径
厘米,圆心角
,点
是
的中点,点
、
分别是半径
、
上的点,且
.
,
,则图中阴影的面积为______ 平方厘米.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5784ea22dbd90af6cdceae43f80a22e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870db8090d5c4d194c25cf1355968f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5eaffcd2070bfcb1955e2cab66c26c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aa6481beb14c81b1371fdcede025b5e.png)
![](https://img.xkw.com/dksih/QBM/2021/6/11/2740696137392128/2741573449007104/STEM/33852877c54a461097136820b226545a.png?resizew=185)
您最近一年使用:0次
10 . 如图,在扇形AOB中,
,
,点P是弧AB上一动点,连接OP,点C是OP的中点,连接AC并延长,交OB于点D,则图中阴影部分面积的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ccc37b189fa2cbc269ca0b233dac37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9774f83067ed956a551bc41adcce0469.png)
![](https://img.xkw.com/dksih/QBM/2021/5/20/2725305469157376/2741495660347392/STEM/ba5c247a-4a8f-417b-98b7-363a55e3e9b1.png)
您最近一年使用:0次
2021-06-12更新
|
351次组卷
|
2卷引用:2021年河南省许昌市中考二模数学试卷