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Author:
hung
GeoGebra
New Resources
兩組對邊相等的四邊形
直角坐標平面上的旋轉變換
三位數除以一位數（一）
畫出對稱圖形
拼砌四邊形
Discover Resources
regular tetrahedron in a cube
君子球
周长相等，正方形，长方形和正三角形，圆面积大小比较
我的第一个GGB回本
兩組對邊相等的四邊形
Discover Topics
Median Value
Hypergeometric Distribution
Standard Deviation
Scatter Plot
Centroid or Barycenter