7-5 Medians and Altitudes
Concurrency of Altitudes of a Triangle
The lines containing the altitudes of a triangle are congruent
Concurrency of Medians Theorem
The medians of a triangle are concurrent at a point that is 2/3 the distance from each vertex to the midpoint of the opposite side
orthocenter of a triangle
The point of concurrency of the altitudes of a triangle
median of a triangle
a segment from a vertex to the midpoint of the opposite side
altitude of a triangle
the perpendicular segment from a vertex of the triangle to the line containing the opposite side
centroid of a triangle
the point of concurrency of the three medians of a triangle