如图,在
中,
,半径为
的
是
的内切圆,连接
,
,则图中阴影部分的面积是( )
![](https://img.xkw.com/dksih/QBM/2023/6/8/3255084884860928/3263167235416064/STEM/1ac10b2319f24f15affff8598e25405a.png?resizew=219)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8793053fbb2ac5a3122b092a575124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976260cbf5e30856d4fd37a4b0a671a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://img.xkw.com/dksih/QBM/2023/6/8/3255084884860928/3263167235416064/STEM/1ac10b2319f24f15affff8598e25405a.png?resizew=219)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-06-21 23:46:59
|
相似题推荐
单选题
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适中
(0.65)
【推荐1】如图所示,点
为
的内心,
,
,点
,
分别为
,
上的点,且
.甲、乙、丙三人有如下判断:
甲:
;
乙:四边形
的面积是定值;
丙:当
时,
的周长取得最小值.
则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2023/2/24/3181823835873280/3188598971129856/STEM/d15495e974a34d19a45948a2bd3f051f.png?resizew=194)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f31a8b13ded0a4ed88bb03d82658ba42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5815f0a16bc9562f37859afe7dc8a9a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764509115979e9958101808383672ec0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb6eabb9a3a34b9c0839eb30a88c4d7.png)
甲:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c10e98b9ae0760ed147b665b3f5f71.png)
乙:四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f0c1977193045d7d01e284cfbc01529.png)
丙:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f746310799dace08e9cb13afaf721e2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baefc8a9b711ab9f3741491fd298a119.png)
则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/2023/2/24/3181823835873280/3188598971129856/STEM/d15495e974a34d19a45948a2bd3f051f.png?resizew=194)
A.只有甲正确 | B.只有丙错误 |
C.乙、丙都正确 | D.甲、乙、丙都正确 |
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单选题
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适中
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【推荐2】下列叙述:①圆内接四边形对角互补;②矩形一定有一个外接圆;③三角形的外心到三角形三边的距离相等;④三角形一定有内切圆,其中真命题的个数有( )
A.4个 | B.3个 | C.2个 | D.1个 |
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【推荐1】如图,
是
的切线,B为切点,
与
交于点C,以点A为圆心、以
的长为半径,作
,分别交
于点E、F.若
,
,则图中阴影部分的面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/c32afd51-76cd-4cd9-b219-31809511010c.png?resizew=175)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e124a392dc84fcc1662fe6d896aa12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd3724385f98a2415ba27f8df4c31d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ef520a2657abdf14fa6818c380b596a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/18/c32afd51-76cd-4cd9-b219-31809511010c.png?resizew=175)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】如图正六边形的边长为2,分别以每一个顶点为圆心,以边长为半径画圆弧,则图中阴影部分面积为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/10/21/f89f2cc6-0e32-41e6-a9f3-06d5342efc46.png?resizew=153)
A.![]() | B.![]() | C.![]() | D.![]() |
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