The driveway of the Santiagos' new home is to be bounded by semicircle arcs as shown. The distance from X to Y is 100 ft. The co
ncrete driveway is 10 ft wide and 1/3 fit thick. Using 3.14 as an approximation for pi, how many cubic feet of concrete are needed to build the driveway? (Round your answer to the nearest cubic foot.) A. 471 ft^3
B. 942 ft^3
C. 1060ft^3
D. 1308 ft^3
E. 1884 ft^3