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GeoGebra
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3-6-12
Author:
Tzuen Hsu
GeoGebra
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畫出對稱圖形
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
錐體建築師
三位數除以一位數（二）
Discover Resources
Form 3 (中三）
優良作品2
指數函數的圖像
testing
[洋葱] 一线三等角的应用
Discover Topics
Optimization Problems
Sphere
Logarithm
Function Graph
Incircle or Inscribed Circle