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polygon(first upload)
Author:
mingyi
GeoGebra
New Resources
兩位數除以一位數（二）
判斷球體
兩位數加法
畫出對稱圖形
小数 的副本
Discover Resources
GeoGebraBook(for20151202)
簡單動畫
矩形
認識時間
Locus (Two points 1)
Discover Topics
Statistics
Ratios
Geometric Transformations
Cone
Sine