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圓內接正N邊形
Author:
ryan huang
GeoGebra
New Resources
兩位數加法
找出對稱軸
GeoGebra笔记功能体验课件
三位數除以一位數（二）
球體建築師
Discover Resources
happy new year
包含除法（整數÷整數）
組織圖、頻數多邊形
Indices 4
奠基測試
Discover Topics
Trapezoid
Surface
Vectors 2D (Two-Dimensional)
Plane Figures or Shapes
Upper and Lower Sum or Riemann Sum