a. volume of a sphere is 4/3*pi*r^3 4/3*3.14*1.6^3 = 17.1486 cm^3 because it is a half sphere, divide that by 2: 8.5743 cm^3
b. volume of a cylinder is base area (pi * r^2) multiplied by the height The cylinder shares a radius with the half sphere, so this gives us: 3.14*1.6^2*6.2 = 49.8381 cm^3
c. this is simply the combined volume 8.5743 + 49.8381 = 58.4124 cm^3
