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正方形推垛
Author:
施奕瑄
GeoGebra
New Resources
柱體建築師
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
兩位數加法
畫出對稱圖形
Discover Resources
My second work
Sphere[O, r]
箭头平移
黃金矩形
調和平均數、算術平均數、幾何平均數、平方平均數之間的不等式
Discover Topics
LCM and GCD
Integers
Addition
Natural Numbers
Surface