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How to draw an ennegon with ruler and compasses?
Author:
Pythoner
GeoGebra
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四邊形的特性
GeoGebra笔记功能体验课件
三位數除以一位數（一）
找出對稱軸
兩組對邊相等的四邊形
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n等分點
三條線上的三角形
證明
分數(約分)
台灣國旗(I love Taiwan)
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Ellipse
Differential Equation
Fractions
Real Numbers
Complex Numbers