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动圆与两(相离)圆外切
Author:
蔡永志
动圆与两(相离)圆外切
GeoGebra
New Resources
直線的斜率
三位數除以一位數（二）
多邊形的面積
兩位數除以一位數（二）
漂亮的摇摆曲线
Discover Resources
拋物線
三角函數
畢式定理 (10)
Apollonius Problem 5 CPP Inversion
DSE Circle-ACT06 Relationship of Tangents and Radius of a Circle
Discover Topics
Diagrams
Geometric Transformations
Set Theory
Scalene Triangles
Continuity