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Rotational and reflectional symmetry of a regular polygon
Author:
Ngan Hok Hei
,
lamanleung
GeoGebra
New Resources
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
拼砌四邊形
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
Discover Resources
固定周界的長方形的面積變化
Statistical calculator 2
相似形的應用
Copy of 十行表
S3 Ex4.3 Q03(3D圖)
Discover Topics
Complex Numbers
Integers
Geometry
Bar Chart or Bar Graph
General Quadrilateral