Concept #17: Summary of Points of Concurrency
Angle Bisectors
Perpendicular Bisectors
Medians
Name of point
of concurrency
Special Notes:
Special Triangles: (inside, outside, somewhere else? – be specific)
Equilateral 
Obtuse 
Right 
Euler Line
1. Which points are always on the Euler Line?
2. What Is unique about the Euler line in an:
Isosceles Triangle?
3. Which points are always the endpoints?
4. Which point is always the center?
5. When the  is not equilateral or isosceles, what do you notice
about the way the Euler line is divided? (measure the segments)
Equilateral Triangle?
Altitudes
Altitudes
Medians
Perpendicular Bisectors
Angle Bisectors
Equilateral Triangles
Obtuse Triangles
Right Triangles