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GeoGebra
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GeoGebra
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GeoGebra
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重心
Author:
湯士賢
GeoGebra
New Resources
拼砌四邊形
球體建築師
畫出對稱圖形
三位數除以一位數（二）
柱體建築師
Discover Resources
prism
zentangle
Directed numbers
分數約分
尺规作图得到黄金三角形和黄金矩形
Discover Topics
Linear Programming or Linear Optimization
Isosceles Triangles
Plane Figures or Shapes
Expected Value
Ellipse