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三圓外切
Author:
AlexWang
GeoGebra
New Resources
兩位數加法
三位數除以一位數（二）
三位數除以一位數（一）
錐體建築師
找出對稱軸
Discover Resources
內擺線
Jiawen Yun
與園內切且外切的圓心軌跡方程式
階梯圖形(二)
V3-2-2
Discover Topics
Logarithmic Functions
Addition
Quadrilaterals
Tangent Function
Inequalities