Softball can be related to geometry in many ways. First, the softball "diamond" or the infield of a softball field and the way a softball pitcher throws. A softball pitcher must make a 90 degree angle to throw a fastball with the rotation of there arm and snap as they come down. But the rotation and angle of the arm changes when the pitcher throw a different pitch. You could also say a softball is geometrical itself. It is a sphere. With a radius, circumference and diameter