Height The height or altitude of a triangle passing through a vertex is the perpendicular line to the opposite side, usually denoted by , that contains . Syntax height(Triangle, Integer) height(Point, Point, Point) Description height(Triangle, Integer) Given a triangle and an integer , returns the height of the triangle passing through the -th vertex. height(Point, Point, Point) Given three points , and describing a triangle, returns the height passing through . Related functions Height foot, Orthocenter, Perpendicular Table of Contents Syntax Description Related functions