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密鋪2
Author:
chen mingchuan
GeoGebra
New Resources
兩位數加法
三位數除以一位數（二）
畫出對稱圖形
四邊形的特性
球體建築師
Discover Resources
緯度、日照、影子長。
等軸雙曲線
鑲嵌
雙曲線3-等軸法
尺规作图
Discover Topics
Unit Circle
Trigonometric Functions
Similarity Transformation or Similarity
Median Line
Equilateral Triangles