如图,直线
与直线
分别交于点A,D,M,N,其中
,
.若要使
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b79c80cc81b5446dfac3ee97b03c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5765baa37b4496edb21aba4969df2b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea95007ed4f97f0d97da3f4bdf1b48bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be25ec02d361ed6d00585580749a286e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a11029ca6b4b9e7f777af0280cf163c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7098c45594103b46e6b57cfc6023e93.png)
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更新时间:2024-04-08 14:48:22
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【推荐1】光线从一种介质射向另一种介质时会发生折射.如图,这是一块玻璃的
,
两面(玻璃上下两个面)的示意图,且
,一束光从玻璃
面的C处射向玻璃
面的
处,但从玻璃
面的
处射出时发生了折射,使光线从
变成了
,
为光线
延长线上一点.已知
,
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc8444d63d1ca92651c62fe9b220859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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【推荐1】如图,已知
中,
,
是
的平分线,其中
,则
的度数是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/c60126cb-d820-4ba6-83ac-a244dabac37e.png?resizew=144)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d021981c03e75b1a246d899dcc64656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fabb884dc5f9609de491245463bbe9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c62558c45006d8830b72d31aae0c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/836ea820cf3732508cdd332ceb9395ce.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/22/c60126cb-d820-4ba6-83ac-a244dabac37e.png?resizew=144)
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【推荐2】如图,在
中,
,将
绕点
顺时针旋转
后得到
(点
的对应点是点
,点
的对应点是点
),连接
,若
,则
的大小是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/821579e7-b587-4d08-9d01-f40794835034.png?resizew=153)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8f88798ec42a58dccd212586382b23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c06154cae3bf7a8ce5a1e97a7380875.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/15/821579e7-b587-4d08-9d01-f40794835034.png?resizew=153)
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