The surface area of a hollow cylinder (tube) is given by ? = 2? (?_1 ?_2 ) ( ?_1 ?_2 ) where h is the length of the cylinder and R1 and R2 are the outer and inner radii. If h, R_1, and R_2 are measured to be 6 in, 2 in, and 4 in respectively, and if these measurements are accurate within 0.1 in, estimate the maximum percentage error in computing S