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正四面体的切接球
Author:
蔡永志
Topic:
Sphere
正四面体的切接球
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
畫出對稱圖形
兩位數除以一位數（二）
画直线等分三角形的面积
找出對稱軸
Discover Resources
阿基米德(3,10,10)
垂直線的斜率關係
倍數的判別
圓錐截痕模型
分數乘法
Discover Topics
Integers
Differential Equation
Centroid or Barycenter
Conic Sections
Matrices