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圆锥曲线
Author:
杨晓晨
Topic:
Conic Sections
GeoGebra
New Resources
空间中两直线的位置关系
探究三角形的全等條件
三位數除以一位數（一）
圓的切線方程
【案例】圆柱体内放置一个大球六个小球
Discover Resources
香港的硬幣
畢氏定理
奈格爾點
congruent triangle_provided by Mr Yeung Kar Chun
连续开方（制作：谢建华，修订：孟宝兴）
Discover Topics
Sequences and Series
Geometry
Fractal Geometry
Continuity
Right Triangles