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銀杏葉
Author:
連琨銘
GeoGebra
New Resources
四邊形的特性
畫出對稱圖形
兩位數加法
球體建築師
兩組對邊相等的四邊形
Discover Resources
雙曲線
百分數（小學）：折扣 / 賺賠（HTML5 版）
橢圓動畫
減法
GGB9
Discover Topics
Equilateral Triangles
Standard Deviation
Similarity Transformation or Similarity
Cuboid
Parametric Curves