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根據百分率找數量（二）: 例3
Author:
GeoGebra Institute of Hong Kong
Topic:
Percentages
GeoGebra
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判斷球體
美國國旗 (Claude 版)
畫出對稱圖形
算柱 (兩位數)
拼砌四邊形
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正立方體內皂膜
二次曲線-1.圓錐曲線
在釘點紙上畫垂直線
劉虹圻 垂心
同心圓
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Unit Circle
Root
Plane Figures or Shapes
Sphere
Similar Triangles