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1060420內接def
Author:
陳正鴻
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
兩位數加法
【案例】2013年安徽高考15题
兩位數除以一位數（二）
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Homework1
從 12 面體、20 面體到 C60 C80
平行4
Activity 2
不规则平移
Discover Topics
Similarity Transformation or Similarity
Quadratic Equations
Trigonometric Functions
Square
Circumcircle or Circumscribed Circle