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Author:
philiplui
GeoGebra
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兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
判斷球體
異分母分數減法
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平面幾何
音樂會的入場人數
義守財數101級製作
五点共圆
圆周率π的收敛极快算法（代数几何方法）
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Circle
Functions
Symmetry
Random Variables
Boxplot