How to Find the orthocenter of a Triangle
The orthocenter of a triangle is where all of the altitudes of a triangle meet each other.
The altitude is a perpendicular line segment from a vertex of a triangle to the opposite side (Vertex A to side BC).
To draw the orthocenter, first You draw the triangle on a coordinate plane and draw all three altitudes (one from each vertex of the triangle) and determine the point at which they all intersect. This intersection is a orthocenter of a Triangle ABC.