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兩圓及交弦
Author:
luke huang
GeoGebra
New Resources
畫出對稱圖形
兩位數加法
直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
三位數除以一位數（一）
Discover Resources
餘弦定理
三角函數
Question 2
尝试绘本
动圆与两圆外切与内切(1)
Discover Topics
Median Value
Diagrams
Division
Set Theory
Equilateral Triangles