Identify the word problem that represents the algebraic expression πr²(3r).
1) the amount of tissue paper needed to cover a tennis ball canister shaped like a cylinder with a radius 3 times its height.
2) the volume of a cylindrical shaped corn silo with a height that is 3 times the radius.
3) the surface area of a round ball shaped like a sphere with a radius of 3 meters.
4) the volume of a jar of salsa in the shape of a right cylinder with a radius that is 3 times its height
