如图,
为
的直径,
是弦,将
绕着
点顺时针旋转得到
,点
恰好落在
上,
交
于
点,若
,
,则
的长是( )
![](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/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6f9353ca110c8b81561455b232dbc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/f6f9353ca110c8b81561455b232dbc15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee08a3784e0253a241d756bd69336fd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
A.2 | B.![]() | C.![]() | D.![]() |
更新时间:2024-03-26 21:24:39
|
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【推荐1】如图,四边形
内接于
,对角线
,
交于点
,延长
,
交于点
.下列说法错误的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/28/329d618b-7a33-447a-8a42-49e404f016df.png?resizew=167)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图,线段AB是⊙O的直径,弦CD⊥AB于点H,点M是
上任意一点,AH=2,CH=4,则sin∠CMD等于()
![](https://img.xkw.com/dksih/QBM/2020/6/9/2481000887681024/2481891137183744/STEM/da8b805e48c74896b01672488aa71a07.png?resizew=140)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/997e259b8e338efec1d972717a483eea.png)
![](https://img.xkw.com/dksih/QBM/2020/6/9/2481000887681024/2481891137183744/STEM/da8b805e48c74896b01672488aa71a07.png?resizew=140)
A.0.2 | B.0.4 | C.0.8 | D.0.6 |
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【推荐1】如图,在平面直角坐标系中,
绕某一点
旋转一定的角度得到△
,根据图形变换前后的关系可得点
的坐标为
.
![](https://img.xkw.com/dksih/QBM/2017/1/4/1633719251255296/1633719251443712/STEM/00a5c556d26c4b0d8f7a5f35259f6860.png?resizew=225)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3c65edad25ddd666cdce0d7e5afefc9.png)
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A.(0,1) | B.(1,﹣1) | C.(0,﹣1) | D.(1,0) |
您最近一年使用:0次
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【推荐2】如图,将
以直角顶点
为旋转中心顺时针旋转,使点
刚好落在
上(即:点
),若
,则图中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/4/2/b5ce6b9f-0882-417f-8aee-511411015dec.png?resizew=96)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐1】如图,在正方形
中,
是
边的中点,连接
交
于点
,连挍
,有下面四个结论:①
;②
;③
;④
.其中正确的结论有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
单选题
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适中
(0.65)
【推荐2】如图,矩形
的顶点
在反比例函数
的图像上,顶点
,
在
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轴于点
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的面积是
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