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平行四邊形有甚麼特性？
Author:
Anthony OR 柯志明
Topic:
Parallelogram
English version:
http://ggbtu.be/m79826
GeoGebra
New Resources
兩位數加法
球體建築師
算柱 (兩位數)
拼砌四邊形
找出對稱軸
Discover Resources
折紙畫橢圓
封閉圖形填顏色
Distributive Law 2 (分配率 2)
周界
椭圆的定义
Discover Topics
Statistical Characteristics
Addition
Fractions
Limits
Square