**Please DO NOT handwrite the answer**

The height of the cylinder is 8 inches.

We'll be analyzing the surface area of a round cylinder - in other words, the amount of material needed to "make a can."

A cylinder (round can) has a circular base and a circular top with vertical sides in between. Let rbe the radius of the top of the can, and lethbe the height.The surface area of the cylinder, A, isA=2r2+2rh(it's two circles for the top and bottom plus a rolled-up rectangle for the side).