<P> In geometry , an altitude of a triangle is a line segment through a vertex and perpendicular to ( i.e. , forming a right angle with ) a line containing the base ( the side opposite the vertex ) . This line containing the opposite side is called the extended base of the altitude . The intersection of the extended base and the altitude is called the foot of the altitude . The length of the altitude , often simply called `` the altitude '' , is the distance between the extended base and the vertex . The process of drawing the altitude from the vertex to the foot is known as dropping the altitude at that vertex . It is a special case of orthogonal projection . </P>
<P> In geometry , an altitude of a triangle is a line segment through a vertex and perpendicular to ( i.e. , forming a right angle with ) a line containing the base ( the side opposite the vertex ) . This line containing the opposite side is called the extended base of the altitude . The intersection of the extended base and the altitude is called the foot of the altitude . The length of the altitude , often simply called `` the altitude '' , is the distance between the extended base and the vertex . The process of drawing the altitude from the vertex to the foot is known as dropping the altitude at that vertex . It is a special case of orthogonal projection . </P>
what is a altitude of a triangle in geometry
what is a altitude of a triangle in geometry
a line segment through a vertex and perpendicular to ( i.e. , forming a right angle with ) a line containing the base ( the side opposite the vertex )
a line segment through a vertex and perpendicular to ( i.e. , forming a right angle with ) a line containing the base ( the side opposite the vertex )