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重心
Author:
湯士賢
GeoGebra
New Resources
四邉形 (四年級) 教師版
四邊形的特性
畫出對稱圖形
兩位數除以一位數（二）
画直线等分三角形的面积
Discover Resources
指數圖形的變化
二次函數應用問題
圓與正方形中點軌跡1060317
All in one (Centres of triangle)
GeoGebra游戏案例集
Discover Topics
Linear Programming or Linear Optimization
Confidence Interval
Geometry
Linear Functions
Secant Line or Secant