Q#3. Bob's Concrete has a fleet of concrete mixer trucks to service large-scale construction projects. Each truck has a mixer that has the shape of a right circular cylinder with a frustum of a right circular cone at each end. The radius of the cylinder is 3.80 ft. The radii at both ends of the mixer are 1.90 ft each( i.e, the radii at the narrow ends of each frustum. a) Determine the capacity of the mixer in cubic yard. b) You are working on a project that will require 9650 cubic yard of concrete to pour the foundations. You have decided to use Bob's Concrete service. How many truck loads of concrete will be required to get the job done. Round up your answer to 3 significant digits.(6+4 = 10 marks) a) Capacity of the mixer = b) Number of truck loads of concrete = Bob's Concrete 1.15 ft 6.50 ft 1.15 ft