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三角形的外心
Author:
真呷意
外心
GeoGebra
New Resources
【案例】2013年安徽高考15题
画直线等分三角形的面积
球體建築師
四邉形 (四年級) 教師版
畫出對稱圖形
Discover Resources
Relationships between chords and their distances from centre
UpdateConstruction
正四角錐(旋轉，實體、透視)
矩形性质推论
对角线交点
Discover Topics
Volume
Binomial Distribution
Means
Rhombus
Continuity