The Surface area of the cylinder is 130π in terms of π. The formula for surface area of a cylinder is 2πrh + 2<span>πr^2 2*</span>π*5*8 + 2*<span>π*5^2 2*</span>π*40 + 2*<span>π*25 2</span>π*40 +2<span>π*25 80</span>π + 50<span>π 130</span><span>π</span>
A) w * L = 112 B) 2w + 2L = 44 A) w = 112 / L then substituting this into B) B) 2 * (112/L) + 2L = 44 B) 224 / L + 2L = 44 B) 224 + 2L^2 = 44L B) 2L^2 -44L +224 = 0 L = 14 L = 8
