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射线上滚动椭圆
Author:
istone
Topic:
Conic Sections
,
Constructions
,
Integral Calculus
GeoGebra
New Resources
球體建築師
找出對稱軸
拼砌四邊形
兩位數除以一位數（二）
錐體建築師
Discover Resources
黃金螺線
三角形的三角和及外心、內心圓
Copy of 分數與小數
數學繪圖
軸對稱的副本
Discover Topics
Set Theory
Ellipse
Surface
Conditional Probability
Translation