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1115-2
Author:
chen mingchuan
GeoGebra
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兩位數加法
柱體建築師
四邊形的特性
兩組對邊相等的四邊形
兩位數除以一位數（二）
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Mobius 變換
孟氏定理 (Menelaus' theorem)
Example 5
教材製作-兩圓位置關係
卓蘭高中
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Normal Distribution
Constructions
Centroid or Barycenter
Kite
Intersection