已知直线
,将一块含45°角的直角三角板ABC按如图方式放置,其中斜边BC与直线n交于点D.若
,则
的度数为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a93a52c2b943e4c70ace99ed802d2b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619966af5abba968962c958a9facb22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
![](https://img.xkw.com/dksih/QBM/2020/6/13/2484008772624384/2492047893774337/STEM/5533619a-d9a7-4b67-bd2f-9a5e405d757e.png?resizew=228)
2020九年级·四川绵阳·学业考试 查看更多[6]
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更新时间:2020-06-25 07:07:19
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