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Author:
蔡柏皓
GeoGebra
New Resources
三位數除以一位數（二）
拼砌四邊形
兩位數除以一位數（二）
球體建築師
球体的体积推导（优化版）
Discover Resources
圓環扇形
Liu Hui's Method of Finding π
線對稱圖形
平移中心
加減乘除运算 出题器【有数字键盘】
Discover Topics
Circumcircle or Circumscribed Circle
Probability
General Quadrilateral
Conic Sections
Vectors 3D (Three-Dimensional)