如图,AB//CD,点E、F分别在直线AB、CD上,
,若
,则∠2的度数为( )
![](https://img.xkw.com/dksih/QBM/2022/4/30/2969241530916864/2972985182363648/STEM/f74dbeed8d6c42e0aae56a637ff871a4.png?resizew=139)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d84756764173829ecd7d0272785c7e19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b4eb3df08757e2b6c15122a6ca89f8.png)
![](https://img.xkw.com/dksih/QBM/2022/4/30/2969241530916864/2972985182363648/STEM/f74dbeed8d6c42e0aae56a637ff871a4.png?resizew=139)
A.120° | B.125° | C.130° | D.135° |
更新时间:2022-05-05 18:56:44
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【推荐1】下列说法正确的个数是( )
(1)如果两条直线被第三条直线所截,那么同位角相等;
(2)点到直线的距离是指直线外一点到这条直线的垂线段;
(3)在平面内经过一点有且只有一条直线与已知直线垂直;
(4)在平面内经过一点有且只有一条直线与已知直线平行
(1)如果两条直线被第三条直线所截,那么同位角相等;
(2)点到直线的距离是指直线外一点到这条直线的垂线段;
(3)在平面内经过一点有且只有一条直线与已知直线垂直;
(4)在平面内经过一点有且只有一条直线与已知直线平行
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】如图,直线
,
交于点O,已知
于点O,
平分
,若
,则
的度数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23162d8d2a833da1843f0442a2534be4.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,点D,F在直线
上,
,若
比
的2倍小
,则
的度数为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/19222723-5850-4110-a80e-a141ca23052a.png?resizew=229)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b69d40b75d582c4b8ffa2369af1d41.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/22/19222723-5850-4110-a80e-a141ca23052a.png?resizew=229)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】如图,直线
,
相交于点
,射线
平分
,若
,则
等于( )
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701161544318976/2701271805181952/STEM/b144408c76d44e2a88a53af052ef950f.png?resizew=27)
![](https://img.xkw.com/dksih/QBM/2021/4/16/2701161544318976/2701271805181952/STEM/f5acec90255b46a793f1eaa3804267c7.png?resizew=157)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】如图,已知
,晓玉把三角板的直角顶点放在直线b上.若
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc8444d63d1ca92651c62fe9b220859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619966af5abba968962c958a9facb22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】下列命题中:①三角形的高必交于一点;②两条直线被第三条直线所截,内错角相等;③如果一个数的平方根是这个数本身,那么这个数是0;④过一点有且只有一条直线与已知直线垂直.是真命题的个数是( )
A.1个 | B.2个 | C.3个 | D.4个 |
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