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Author:
李春培
GeoGebra
New Resources
柱體建築師
兩位數除以一位數（一）
算柱 (兩位數)
画直线等分三角形的面积
拼砌四邊形
Discover Resources
畢氏定理的證明
孔明棋 (Peg Solitare)
用和或差的平方做因式分解
指令
黃金矩形與複數級數
Discover Topics
Inequalities
Scatter Plot
Curve Sketching
Means
Coordinates