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congruent triangle_provided by Mr Yeung Kar Chun
Author:
kidmancmw
GeoGebra
New Resources
拼砌四邊形
直角坐標平面上的旋轉變換
畫出對稱圖形
兩位數除以一位數（二）
柱體建築師
Discover Resources
正方體的反射對稱3
物件平移的概念
Apollonius Problem 8 CLL homo 12
外心垂心問題
比例中的定值問題
Discover Topics
Isosceles Triangles
Symmetry
Hyperbola
Logic
Similarity Transformation or Similarity