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S4E13镜面的方圆错觉
Author:
杨秀芬
GeoGebra
New Resources
柱體建築師
畫出對稱圖形
三位數除以一位數（二）
錐體建築師
兩位數除以一位數（一）
Discover Resources
題 9
馬奔跑
Perpendicular lines
Copy of 簡易的迷宮
六上：圆的面积公式推导
Discover Topics
Linear Equations
Curve Sketching
Cone
Vectors 3D (Three-Dimensional)
Isosceles Triangles