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菱形有甚麼特性？
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79847
GeoGebra
New Resources
兩位數加法
兩組對邊相等的四邊形
小数 的副本
兩位數除以一位數（二）
四邉形 (四年級) 教師版
Discover Resources
test03繪本用
Rotational symmetry of triangular prism
量詞
Volumen ablesen 1
塗色03
Discover Topics
Angles
Plane Figures or Shapes
Unit Circle
Equilateral Triangles
Translation