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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
GeoGebra笔记功能体验课件
拼砌四邊形
找出對稱軸
算柱 (兩位數)
畫出對稱圖形
Discover Resources
複合圖形(八)
perd fr ctr bisect
正方體一筆畫
三角柱(可側轉、上下轉)
随机模拟实验（撒豆子估算π）的副本
Discover Topics
Mode
Vectors 2D (Two-Dimensional)
Geometric Transformations
Expected Value
Diagrams