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圓外切四邊形
Author:
李春培
Topic:
Circle
GeoGebra
New Resources
圓的切線方程
讀磅
圓周公式的應用
三位數除以一位數（二）
祖冲之的期望：内棋与外棋
Discover Resources
一次函數平移(進階)
畫方格
轉盤送分遊戲
功課
ycmc P5 Math lesson 1-3
Discover Topics
Inequalities
Right Triangles
Surface
Incircle or Inscribed Circle
Hyperbola