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数学
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几何
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Circles in Geometry
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圆
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与其它圆弧角的关系
Topics in 与其它圆弧角的关系
Numbered in the order to learn them.
1
相交的割线形成的圆外角
2
相交的弦或弧形成的圆周角
3
角和弧的不等关系
4
Tangents and Circumscribed Angles: Vertex Outside Circle
5
相交的割线或切线形成的圆外角
6
Relating Circumscribed and Inscribed Angles
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内接角及其它
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圆幂定理
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圆
相交线、圆和边边边/HL全等/非边边角全等
内接角及其它
与其它圆弧角的关系
圆幂定理
外接圆和内切圆/外切圆
构造:(从外部的点)作圆的切线
三角形的内切圆(和外圆)
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