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螺旋正方形
Author:
13陳柏禎
螺旋正方形
GeoGebra
New Resources
畫出對稱圖形
異分母分數減法
【案例】圆柱体内放置一个大球六个小球
兩位數加法
兩位數除以一位數（一）
Discover Resources
Equal chords cut off equal arcs in a circle
Sequence指令練習(逐一套疊正方形)
擴分和約分
橢圓包絡線
三角形重心的变化2.许兴华数学
Discover Topics
Rational Numbers
Similar Triangles
Subtraction
Random Variables
Congruence