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Estimating Mean 猜猜平均數
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
拼砌四邊形
兩位數除以一位數（二）
判斷球體
三位數除以一位數（一）
畫出對稱圖形
Discover Resources
柱體建築師 3
How to reconstruct a quadrilateral farm to a triangular one with the same area?
與兩圓相切的動圓圓心軌跡
动点最值&旋转&椭圆模型
立體旋轉卡片
Discover Topics
Prism
Plane Figures or Shapes
Conditional Probability
Sine
Variance