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Author:
leewsum8
GeoGebra
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双心四边形
祖冲之的期望:内棋与外棋
常见四边形是否是双心四边形
球体的体积推导
三角函数 的副本
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賭神
立方體拿走4塊
觀察對數的對稱性
圓面積與圓周長
圓面積示範
Discover Topics
Natural Numbers
Linear Programming or Linear Optimization
Parabola
Volume
Standard Deviation