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反射變換
Author:
takaywong
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
球体的体积推导
兩組對邊相等的四邊形
畫出對稱圖形
Discover Resources
四角柱體（長方體）的截面
共點線1
和差角公式几何证明
圓錐曲線截痕 to 定義式
transformation_reflection
Discover Topics
Polygons
Parallelogram
Expected Value
Trigonometric Functions
Centroid or Barycenter