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優良作品2
Author:
Ching-Hui Chou
GeoGebra
New Resources
兩位數除以一位數（一）
球體建築師
異分母分數減法
画直线等分三角形的面积
兩組對邊相等的四邊形
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Is this a prism 1
f-10-2-poly3-gph-bac-2&3
兩圓位置關係與公切線
四角錐體的截面
F4_Ch9.1 任意角的三角比
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Percentages
Incircle or Inscribed Circle
Cosine
Differential Calculus
Triangles