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Author:
Ng Cheuk Hei
GeoGebra
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直角坐標平面上的旋轉變換
近似值：有效數字
找出對稱軸
錐體建築師
柱體建築師
Discover Resources
自我練習
Tusi Couple
圓與直線
数一数这是几边形
三角形分形
Discover Topics
Logic
Similarity Transformation or Similarity
Triangles
Distributions
Polygons