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第二組-費馬點
Author:
mathguo
費馬點
GeoGebra
New Resources
兩位數除以一位數（二）
柱體建築師
找出對稱軸
三位數除以一位數（二）
【案例】2013年安徽高考15题
Discover Resources
傅立葉級數 (2)
Apollonius Problem poncelet fouche
Locus (Two points 2)
三角形內角和為180度
表面积变化
Discover Topics
Difference and Slope
Expected Value
Means
Isosceles Triangles
Circumcircle or Circumscribed Circle