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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
New Resources
拼砌四邊形
兩位數加法
判斷球體
柱體建築師
兩位數除以一位數（二）
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圖形縮放展示
正四面體
函数积分
線性規劃(半平面)
Copy of 倒數計時
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Quadrilaterals
Probability
Geometric Distribution
Coordinates
Orthocenter