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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
画直线等分三角形的面积
柱體建築師
球體建築師
算柱 (兩位數)
三位數除以一位數（二）
Discover Resources
生日悖論
S3 Law of Indices
平行四邊形面積
自學練習_兩位數乘三位數
旋轉圓弧
Discover Topics
Centroid or Barycenter
Cone
Boxplot
Division
Angles