Sasha, the carpenter, wants to make sure that a wall and the floor form a right angle. Sasha measures 4 feet up the wall from the floor and makes a mark on the wall. Then, she measure 5 feet out on the floor and makes a mark. If the distance, on the diagonal, between the two marks Sasha made is 6.25 feet, then did she make a right triangle? If not, what type of triangle did she make?