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正三角形的旋轉
Author:
李春培
正三角形的旋轉
GeoGebra
New Resources
球体的体积推导（优化版）
找出對稱軸
錐體建築師
四邊形的特性
畫出對稱圖形
Discover Resources
task7
二項分布 (黑板)
生活中的平面圖形關係─相似
ABC 2
test geoebra1
Discover Topics
Pyramid
Plane Figures or Shapes
Fractal Geometry
Perimeter
Geometric Distribution