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Single Line Deflection
Author:
Sam
GeoGebra
New Resources
第八周作业
兩組對邊相等的四邊形
三位數除以一位數（一）
兩位數除以一位數（二）
畫出對稱圖形
Discover Resources
全等三角形: 重溫
「相似三角形」任务4
旋轉對稱
布丰投针实验
Addition and Subtraction of Directed Numbers (2)
Discover Topics
Trapezoid
Intersection
Correlation
Sphere
Equilateral Triangles