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兩圓外公切線
Author:
郭逸民
GeoGebra
New Resources
GeoGebra笔记功能体验课件
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
兩位數加法
三位數除以一位數（一）
Discover Resources
軌跡,摺紙,滾動,實驗觀察,曲線
正立方體
Distributive Law 2 (分配率 2)
Question 1(Angle)
動態畢氏定理
Discover Topics
Arithmetic Mean
Percentages
Isosceles Triangles
Median Value
Linear Functions