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Author:
dora
GeoGebra
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兩組對邊相等和有直角的四邊形
畫出對稱圖形
兩位數除以一位數（二）
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
Discover Resources
銳角三角函數值的大小比較
Relationship between Volume and Surface Area of a Sphere 球體的體積與表面面積的關係
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Copy of 劉徽的「割圓術」
正二十面體內接黃金矩形
Discover Topics
Rotation
Combinatorics
Trigonometry
Parallelogram
Logic