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动圆在定圆上滚动
Author:
yhf
GeoGebra
New Resources
拼砌四邊形
判斷球體
錐體建築師
畫出對稱圖形
球體建築師
Discover Resources
地球儀5
圓與直線
創作一個相同周界的封閉平面圖形
橢圓軌跡04
正弦函數的伸縮及平移
Discover Topics
Fractal Geometry
Linear Regression
Perimeter
Rhombus
Numbers