A torus is the geometric name for a three-dimensional circular ring. The ring of a basketball hoop is a torus with an outer radius (R) of 9 inches and an inner radius (r) of 1.6 centimeters. Hoops are typically made of steel (density = 489.84 Ibm/ft'). The equation for the volume (V) of a torus is given by the following equation. V=2π²Rr² What is the weight of a basketball hoop in pounds-force? Remember: density mass/volumel hoop