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四則
Author:
周錦鋒
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
兩位數除以一位數（二）
三位數除以一位數（二）
第八周作业
Discover Resources
練習
螺線相似正N邊形
Question 8
重複
y=sinx对称中心
Discover Topics
Normal Distribution
Upper and Lower Sum or Riemann Sum
Ratios
Geometric Distribution
Circumcircle or Circumscribed Circle