Concurrency of Altitudes
- Tom Maes
Shown below is a triangle with its altitudes. Drag the vertices of the triangle around. Make sure you keep the intersection point of two of the altitudes in the viewing window. What do you notice about the altitudes when the triangle is acute? ... when the triangle is right? ...when the triangle is obtuse?
Make a statement that you think will ALWAYS be true about the altitudes of a triangle.