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封閉圖
Author:
林順隆
GeoGebra
New Resources
找出對稱軸
四邉形 (四年級) 教師版
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
Discover Resources
垂心即內心
指數與對數的對稱性
Distributive Law of Multiplication 1 (乘法的分配率 1)
用面積逼近圓周率的副本
Copy of 分數加法
Discover Topics
Hypothesis Testing
Boxplot
Orthocenter
Trapezoid
Matrices