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梯形有甚麼特性？
Author:
Anthony OR 柯志明
English version:
http://ggbtu.be/m79855
GeoGebra
New Resources
第八周作业
四邊形的特性
畫出對稱圖形
兩組對邊相等的四邊形
算柱 (兩位數)
Discover Resources
立體圖形－截面
四邊形特性
GeoGebra繪本製作
基础知识
平移
Discover Topics
LCM and GCD
Probability
Rational Numbers
Sphere
Unit Circle