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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
兩組對邊相等的四邊形
找出對稱軸
兩位數加法
三位數除以一位數（二）
Discover Resources
log and power funtion
雜項
周界
parmater
M2: disc/shell
Discover Topics
Circumcircle or Circumscribed Circle
Function Graph
Arithmetic
Surface
Set Theory