For a triangle, list the respective names of the points of concurrency of
• perpendicular bisectors of the sides
• bisectors of the angles
• medians
• lines containing the altitudes
Perpendicular bisectors of the sides:
- Circumcenter (point where all perpendicular bisectors intersect)
Bisectors of the angles:
- Incenter (point where all angle bisectors intersect)
Medians:
- Centroid (point where all medians intersect)
Lines containing the altitudes:
- Orthocenter (point where all altitudes intersect)