Obtain the Monge point for the next tetrahedron:
{9/2, 3/2, 0}, {2, 7/2, 0}, {7/2, 3, 0} y {5/2, 5/2, 2} , then trace the crcumscribed sphere.
The Monge point of a tetrahedron is the point of concurrence of the anti-mediator
planes that pass through the midpoint of each edge and is perpendicular to the opposite edge.