如图,
,
在
内部,
在
外部,已知
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/9d9ca704-952d-48cd-93f3-244ee6a54eaa.png?resizew=145)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7b2fe01a33c4825f9974ed9663a99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d7d5da4e738821a1c7f27e75086ea00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b2f7bab4ed36ec5d04db3aeed2796f2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/13/9d9ca704-952d-48cd-93f3-244ee6a54eaa.png?resizew=145)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2023-05-15 03:08:22
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【推荐1】如图,∠AOB与∠COB的度数分别记为m,n(m>n),OM,ON分别是∠COB,∠AOC的平分线,则∠MON的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/d103705f-2c6a-4804-9703-8bf2064eb299.png?resizew=137)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/18/d103705f-2c6a-4804-9703-8bf2064eb299.png?resizew=137)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】如图,将一副三角尺的直角顶点重合在一起,在将三角尺AOB绕点O旋转的过程中,下列结论成立的是( )
![](https://img.xkw.com/dksih/QBM/2019/6/26/2233791674007552/2233966478196736/STEM/0cdb74237fdf4bbf9300b59c97160947.png?resizew=118)
![](https://img.xkw.com/dksih/QBM/2019/6/26/2233791674007552/2233966478196736/STEM/0cdb74237fdf4bbf9300b59c97160947.png?resizew=118)
A.∠AOD>∠BOC |
B.∠AOC≠∠BOD |
C.∠AOD-∠BOC=45° |
D.∠AOD+∠BOC=180° |
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名校
【推荐1】如图,直线
相交于点
,
,
平分
.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcf86f7cf381c563ad80af86feeed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acc3b50b12699a4a9a4cc391b8f5bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc9f91270ddbe1cf3c1362e1b95aee14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a25801ec031871af5f0b0903b26cd2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7307ac7510cf35f74337d368b94da4e5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】下列命题中真命题的个数有( )
①同位角相等;②过一点有且只有一条直线与已知直线平行;③两直线平行,内错角相等; ④同一平面内,垂直于同一条直线的两直线互相垂直.
①同位角相等;②过一点有且只有一条直线与已知直线平行;③两直线平行,内错角相等; ④同一平面内,垂直于同一条直线的两直线互相垂直.
A.1个 | B.2个 | C.3个 | D.4个 |
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