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雙曲線之極偶 / polarity for hyperbola
Author:
XIE Yuheng
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
GeoGebra笔记功能体验课件
錐體建築師
三位數除以一位數（二）
四邊形的特性
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Symmetric 設計對稱圖案(一條對稱軸)(垂直)
task1
HKDSE 3D Figures
Lens
双曲线的定义
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Exponent
Quadrilaterals
Right Triangles
Multiplication
Logic