1. Geometry B POINTS OF CONCURRENCY

2. The intersection of the perpendicular bisectors. CIRCUMCENTER

3. The center that is equidistant from the sides of a triangle. INCENTER

4. The intersection of the medians. CENTROID

5. This center may be located on the triangle. CIRCUMCENTER or ORTHOCENTER

6. The intersection of the angle bisectors. INCENTER

7. This center is located 2/3 of the way from the vertex to the opposite side. CENTROID

8. This center is equidistant from the vertices of a triangle. CIRCUMCENTER

9. The intersection of the altitudes. ORTHOCENTER

10. This center can be located outside the triangle. CIRCUMCENTER or ORTHOCENTER

11. The triangle’s center of gravity. CENTROID

12. This center is always located inside the triangle. INCENTER or CENTROID