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切割正十二面體
Author:
薛鈞聰
GeoGebra
New Resources
球体的体积推导（优化版）
兩組對邊相等的四邊形
三位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
錐體建築師
Discover Resources
Quiz on Addition and Subtraction of Directed Numbers (2) 有向數加減測驗(2)
複合圖形(八)
固定周界的長方形面積變化
向量分解：解聯立
等高
Discover Topics
Difference and Slope
Plane Figures or Shapes
Rhombus
Addition
Statistical Characteristics