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廣義角的代換(90,270)
Author:
yuchengda
GeoGebra
New Resources
柱體建築師
画直线等分三角形的面积
畫出對稱圖形
三位數除以一位數（二）
算柱 (兩位數)
Discover Resources
物件的平移概念
旋轉方塊
泰北2017GGB研習
正方体棱切球
圆在折线上滚动
Discover Topics
Coordinates
Parametric Curves
Geometry
Random Variables
Tangent Line or Tangent