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這好難用
Author:
ray10430157
GeoGebra
New Resources
畫出對稱圖形
GeoGebra笔记功能体验课件
兩位數除以一位數（一）
拼砌四邊形
兩組對邊相等和有直角的四邊形
Discover Resources
正四面體空間中投影
test
圆与它的外切圆
水流問題(黑板)
圓外切四邊形
Discover Topics
Area
Rational Numbers
Piecewise Functions
Natural Numbers
Parametric Curves