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賺賠：例1的副本
Author:
冯圣军
,
GeoGebra Institute of Hong Kong
賺賠
GeoGebra
New Resources
比較五件物件的重量
斐波那契螺旋弧线（表格法-可动态调节）
龙形曲线-分形龙
盈利與虧蝕
双心四边形
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Copy of 根據百分率找數量（一）: 例2
正多面體立面化及展開圖
放缩尺
S3 WS4.3 Q02(3D圖)
圆锥曲线的第二定义
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Coordinates
Probability
Polygons
Centroid or Barycenter
Geometric Transformations