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對摺平行四邊形
Author:
hingchan
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
GeoGebra笔记功能体验课件
兩位數加法
兩組對邊相等的四邊形
Discover Resources
分數均分
speed
sincos
平行四邊形的高
St. Line
Discover Topics
Constructions
Right Triangles
Parabola
Incircle or Inscribed Circle
Root