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Sphere[O, r]
Author:
chen mingchuan
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
球體建築師
三位數除以一位數（一）
算柱 (兩位數)
Discover Resources
選四塊來拼砌正方形
圓錐曲線---橢圓
優良作品3
earth
外心
exp(z)
Discover Topics
Geometry
Boxplot
Upper and Lower Sum or Riemann Sum
Planes
Cone