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平行四邊形
Author:
李春培
Topic:
Parallelogram
GeoGebra
New Resources
兩組對邊相等的四邊形
四邊形的特性
美國國旗 (Codex 版)
算柱 (兩位數)
拼砌四邊形
Discover Resources
由拉線80303林心怡
椭圆的参数方程
比例線段截面積
空間中的平面
三角形的心
Discover Topics
Circumcircle or Circumscribed Circle
Cube
Vectors 3D (Three-Dimensional)
Incircle or Inscribed Circle
Division