5.64 Determine the volume and total surface area of the body shown. 52 mm 20 mm Fig. P5.64 42 mm 60 mm A 12 mm 6 mm 9 mm Fig. P 5.65 Determine the volume and mass of the cast-iron pipe collar obtained by rotating the shaded area about the centerline of the 12-mm-diameter pipe. (Density of cast iron = 7200 kg/m.) 5.67 Determine the total surface area of the solid brass knob shown. 5.66 Determine the volume and weight of the solid brass knob shown. (Specific weight of brass = 0.306 lb/in.)