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Apollonius Problem 7 CCP Inversion simple
Author:
tkyggb
GeoGebra
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兩組對邊相等的四邊形
兩位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
找出對稱軸
兩位數加法
Discover Resources
任兩正方形重組成一大正方形partII
Example 6.1
正二十面體內接黃金矩形
Quiz on Signs of Coefficients of Quadratic Functions 二次函數係數的正負號：測驗
[洋葱] 与相似有关的动点问题-上(0051)
Discover Topics
Upper and Lower Sum or Riemann Sum
Arithmetic Mean
Matrices
Square
Correlation