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GeoGebra
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最小周長
Author:
張庭瑞
GeoGebra
New Resources
兩組對邊相等的四邊形
画直线等分三角形的面积
錐體建築師
畫出對稱圖形
兩位數除以一位數（一）
Discover Resources
美麗的彩虹骨牌
games
各立體展開圖
考卷圖片
比較分數大小
Discover Topics
Cone
Arithmetic Operations
Line Segment
Inequalities
Special Points