Question

A silo is a large cylinder container that holds hay. A farmer needs to refinish the side of the silo with aluminum. The silo has a radius of 4 feet and a height of 30 feet. How many square feet of aluminum does the farmer need to refinish the silo? He will not be refinishing the top or bottom of the silo. Use 3.14 for pi and round your answer to the nearest tenth.(1 point)
Incorrect

Find the surface area of the silo first.
Remaining Attempts : 1

Answer 1

Surface area to refinish = lateral area of a cylinder = 2πrh.

With r = 4 ft, h = 30 ft, π = 3.14:
2(3.14)(4)(30) = 240(3.14) = 753.6

So the farmer needs 753.6 square feet of aluminum.