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根據百分率找數量（一）: 例3的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
GeoGebra
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球体的体积推导
找出對稱軸
兩組對邊相等的四邊形
畫出對稱圖形
錐體建築師
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相向而行的兩行進波
圖形
圓錐曲線與平行四邊形定理
橢圓1-同心圓法
少数派Pi
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Coordinates
Perimeter
Sphere
Median Line
Vectors