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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
多邊形的面積
空间中两直线的位置关系
三位數除以一位數（一）
兩位數除以一位數（一）
平行線的斜率
Discover Resources
Angles at the same segment
三下_三角形( 教師版)
整數÷整數_ 工作紙（一）_題8
Copy of 固定面積的圖形的周界變化
Copy of 圓周 (圖形F)
Discover Topics
Continuity
Variance
Congruence
Geometry
Statistical Characteristics