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GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等的四邊形
三位數除以一位數（二）
算柱 (兩位數)
畫出對稱圖形
拼砌四邊形
Discover Resources
Liu Hui's Method of Finding π
蝴蝶線 butterfly line
象形圖 (找出最多/最少)
二元一次圖形
动态展开圆柱体
Discover Topics
Set Theory
Geometric Distribution
Parametric Curves
Functions
Tangent Line or Tangent