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四棱台
Author:
黄婷婷
GeoGebra
New Resources
畫出對稱圖形
球體建築師
異分母分數減法
柱體建築師
三位數除以一位數（二）
Discover Resources
反射定律 Law of Reflection
不規則圖形的周界(雙L)
perimeter
X and Y.
地球上的直線距離
Discover Topics
Normal Distribution
Ellipse
Prism
Isosceles Triangles
Plane Figures or Shapes