如图,在空气中平行的两条入射光线,在水中的两条折射光线也是平行的.若水面和杯底互相平行,且
,则
的度数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e13ae849142a1bd9534b72723c8d1b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d57899ad4774aed9ccc7bd23db72153.png)
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更新时间:2024-04-15 17:49:29
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【知识点】 根据平行线的性质求角的度数解读
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