檢視弦切角定理的原始碼

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中文名；弦切角定理

外文名；Alternate Segment Theorem

 
应用学科；数学

适用领域范围；数学
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'''弦切角定理'''：弦切角的度数等于它所夹的弧所对的圆心角度数的一半，等于它所夹的弧所对的[[圆周角]]度数。

与圆相切的直线，同圆内与圆相交的弦相交所形成的夹角叫做弦切角。<ref>[https://wenku.so.com/d/8baa3d3115bb92d3e8b00e28898967c1 弦切角定理],360搜索 , 2020-07-06</ref>