Perpendicular Bisector
a line, segment, or ray that passes through the midpoint of a side and is perpendicular to that side.
Circumcenter
the point of concurrency of the perpendicular bisectors of a triangle
Angle Bisector
a line, segment, or ray that divides an angle into two equal parts.
Incenter
the point of concurrency of the angle bisectors of a triangle
Median
a line segment with endpoints that are the vertex of a triangle and the midpoint of the side opposite the vertex
Centroid
the point of concurrency of the medians of a triangle
Altitude
a segment from a vertex of the triangle to the line containing the opposite side and is perpendicular to that side.
Orthocenter
the point of concurrency of the altitudes of a triangle
Point of Concurrency
the point of intersection of any three or more lines