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ruler
Author:
felixchow
菱形
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（一）
拼砌四邊形
GeoGebra笔记功能体验课件
判斷球體
Discover Resources
正立方體與正三角錐
部分佔全部的百分率 :例2
例子
翰林B4講p192-例1
将三角形面积一分为二
Discover Topics
Arithmetic
Polynomial Functions
Calculus
Upper and Lower Sum or Riemann Sum
Stochastic Process or Random Process