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圓例9
Author:
陳柄何
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
GeoGebra笔记功能体验课件
找出對稱軸
三位數除以一位數（一）
Discover Resources
柱體高度與體積
格子點
第 57 屆國際數學奧林匹亞競賽試題
三圓外切
向量與坐標
Discover Topics
Arithmetic Operations
Parametric Curves
Area
Constructions
Upper and Lower Sum or Riemann Sum