a silo is a cylinder surmounted by a hemisphere. It's 6 m in diameter and 15 m in height a.) what is the volume?b) total exposed surface area (does no include the circular base on ground)
Surface area of silo = 108*pi^2=1065.92
Volume of cylinder = area of base x height = pi * r^2 * h = pi * 3^2 * 15 = 135*pi Volume of hemisphere = 2/3 * pi * r^3 = 18 *pi Volume of silo = 153*pi = 480.7 Surface area of cylinder = Circumference * height = 2 * pi * r * h = 2 * pi * 3 * 15 = 90*pi Surface area of hemisphere = 2 * pi* r^2 = 2 * pi * 3^2 = 18*pi Surface area of silo = 108*pi =339.3
