如图,由边长为1的小正方形构成的网格中,点A,B,C都在格点上,以
为直径的圆经过点C,D,则
的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/946f7af6-02fb-461a-8860-f7614b983fea.png?resizew=134)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/101bb72104105c615f95d7aede1a9c29.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/14/946f7af6-02fb-461a-8860-f7614b983fea.png?resizew=134)
A.![]() | B.![]() | C.![]() | D.![]() |
23-24九年级上·全国·期末 查看更多[3]
(已下线)清单08 锐角三角函数(8个考点梳理+题型解读+核心素养提升+中考聚焦)-2023-2024学年九年级数学上学期期末考点大串讲(人教版)2024年安徽省芜湖市无为市安徽省无为第三中学中考一模数学试题 河北省廊坊市安次区2023-2024学年九年级下学期第一次月考数学试题
更新时间:2024-01-13 16:10:48
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适中
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【推荐1】
中
,
为弧
中点,
//
,则
度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/6ed9c4ae-de28-4193-b7a9-f780b6622575.png?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a94a3697e5685193cd3f68cd7964373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed66570f697459aba9daa2eaf9460bcb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/4/6ed9c4ae-de28-4193-b7a9-f780b6622575.png?resizew=132)
A.20° | B.30° | C.40° | D.45° |
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【推荐2】如图,
是
的直径,弦
,
,
,则阴影部分的面积是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/7/616c72af-b166-4de5-abee-d0fe5c9b5ae7.png?resizew=157)
![](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/8b757f0c42ae5c9a2d6a4b19e5877b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐1】如图,
是
直径,点C、D将
分成相等的三段弧,点P在
上.已知点Q在
上且
,则点Q所在的弧是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】下列五个说法:①近似数3.60万精确到百分位;②三角形的外心一定在三角形的外部;③内错角相等;④90°的角所对的弦是直径;⑤函数
的自变量x的取值范围是
且
.其中正确的个数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46b961cb1db8c6345308f9c7d350a03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1e123a2b615be0baeef83bd218bce.png)
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A.0个 | B.1个 | C.2个 | D.3个 |
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【推荐1】如图,
的三个顶点都在边长为1的格点图上,则
的值为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/17/45706224-055b-41e2-8858-d94ae99bf844.png?resizew=149)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】直线
与
轴正半轴的夹角为
,那么下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9f0b9e53a83e68f5fec944f343119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/21/61206235-41bf-4656-a4d9-14ee6d5a9eaa.png?resizew=149)
A.![]() | B.![]() | C.![]() | D.![]() |
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