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甜甜圈v5
Author:
lin yiju
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
三位數除以一位數（一）
四邊形的特性
兩位數除以一位數（一）
Discover Resources
共軛點
梯形有甚麼特性？
向量座標
Graph of Sine
雙曲線1-焦點法
Discover Topics
Reflection
Parabola
Rectangle
Probability
Mathematics