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20200318圆内接与圆外切多边形
Author:
陈敦莹
GeoGebra
New Resources
【案例】圆柱体内放置一个大球六个小球
錐體建築師
拼砌四邊形
三位數除以一位數（一）
四邊形的特性
Discover Resources
四棱柱D'UN 的作品
repetitive squares by excel
平移法（二）
正方体展开图的副本
正棱台的侧面展开效果
Discover Topics
Pythagoras or Pythagorean Theorem
Tree Diagrams
Surface
Fractal Geometry
Arithmetic