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梯形有甚麼特性？
Author:
Anthony OR 柯志明
GeoGebra
New Resources
兩位數加法
四邊形的特性
兩組對邊相等和有直角的四邊形
畫出對稱圖形
GeoGebra笔记功能体验课件
Discover Resources
分數的認識
椭圆的定义
[洋葱] 与相似有关的定值问题-Q2
拼砌四邊形
翰林數學_2下_CH3-1_多邊形的外角和
Discover Topics
Root
Circle
Random Variables
Complex Numbers
Reflection