Tingles wants to sell potato chips in cylindrical containers. So the chips do not fall out the containers will have ends. To be environmentally conscious, the company president wants to make the container entirely out of cardboard. Furthermore, they will choose the cylinder that is made with the least amount of cardboard. Cylinder A has a diameter of 4 inches and a height of 2.5 inches. Cylinder B has a diameter of 2 inches and a height of 10 inches. Which containter will they choose?

Question

Answer choices
1. Container B
2. Container A

Answer 1

well, the area of a cylinder is

a = π/2 d(d+2h)

you can forget the 2π, since that is a constant factor of both cylinders. So, plug your numbers into

d(d+2h)

and see which is greater.