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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
New Resources
三位數除以一位數（一）
球體建築師
錐體建築師
直角坐標平面上的旋轉變換
【案例】圆柱体内放置一个大球六个小球
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分數加法和減法
相切的三圓
四年級
比較數量-1
〃Two〃
Discover Topics
General Quadrilateral
Set Theory
Mathematics
Matrices
Indefinite Integral