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GeoGebra
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GeoGebra
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伞骨架模型
Author:
孟宝兴
GeoGebra
New Resources
三位數除以一位數（二）
錐體建築師
畫出對稱圖形
拼砌四邊形
找出對稱軸
Discover Resources
Conic Sections
directed number_the age of father and son
maths
基础知识
直线与圆的位置关系
Discover Topics
Secant Line or Secant
Plane Figures or Shapes
Arithmetic Operations
Multiplication
Equilateral Triangles
