A firework rocket consists of a ca farmer is painting a new barn. he will need to calculate the surface area of the barn to purchase the correct amount of paint. in which of the following units can the farmer expect to calculate the surface area? m m2 ft ft3one stacked on top of a cylinder, where the radii of the cone and the cylinder are equal. the diameter of the cylindrical base of the rocket is 8 in and the height of the cylinder is 5 in, while the height of the cone is 3 in. calculate the surface area of the rocket.