1) The square base has an area of (4 in)^2 = 16 in^2. The height is 5 in, so the volume = bh = 80 in^3.
2) This base is a hexagon (6 sides), so area = (1/2)(6.1 m apothem)(6*7 m perimeter) = 128.1 m^2. The height is 4 m, so the volume = bh = 512.4 m^3.
3) The volume of a cone is (1/3)bh. The area of the base = pi*r^2 = pi*(10/2 mi)^2 = 25*pi mi^2. The height is 11 mi, so the total volume = 25pi*11 = 275pi = 863.94 mi^3.
4) A sphere has volume (4/3)pi*r^3, so given r = 4 in, V = (4/3)pi(4)^3 = 268.08 in^3.
