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畫鐘面的副本
Author:
Chan Lai Man
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
平行線的判定
撒针估算面积实验
异形操场
比較五件物件的重量
双心四边形
Discover Resources
相似形基本圖形
angle between lines
平行線 (同位角 - 位置)
五位數
二次函數的圖形的副本
Discover Topics
Linear Equations
Numbers
Centroid or Barycenter
Area
Sine