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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
New Resources
錐體建築師
兩位數除以一位數（二）
三位數除以一位數（一）
直角坐標平面上的旋轉變換
畫出對稱圖形
Discover Resources
task 4
方格纸上画平行线和垂线
分數
Copy of 拼圖遊戲
橢圓規Ellipsograph (Trammel of Archimedes)
Discover Topics
Circle
Probability
Inequalities
Indefinite Integral
Differential Equation