


Related Terms 


Altitude of a Triangle: The perpendicular distance between a vertex of a triangle and the side opposite that vertex. Sometimes called the height of a triangle. Also, sometimes the line segment itself is referred to as the altitude. 
Angle Bisector: A segment or ray that shares a common endpoint with an angle and divides the angle into two equal parts.
Median of a Triangle: A segment is a median of a triangle if and only if its endpoints are a vertex of the triangle and the midpoint of the side opposite the vertex.
Perpendicular Bisector: A perpendicular line or segment that passes through the midpoint of a segment.
Base (of a Polygon): For twodimensional figures, any side can be a base. Typically, however, the bottom side, on which the polygon 'sits,' is called the base.
Triangle: A polygon with three sides.
Height of a Triangle: The length of the perpendicular segment from a vertex to the opposite side of a triangle. It is also called the altitude of a triangle.


