CONSTRUCTION OF AN OROTHCENTER
Construct a triangle labeled ABC
Construct the altitude from vertex
A to segment BC. This is done by constructing a perpendicular
line from vertex A to segment BC
Now we construct the altitudes from
vertex C to segment AB and vertex B to segment AC
The point where all three altitudes
intersect is known as the orthocenter...labeled as point H
Note: Point H does not have to fall
on the line segments that are altitudes but can be found on the
lines extended along the altitudes