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)
The surface area of a cylinder can be calculated using the formula:
Surface area = 2πrh + 2πr^2
Given:
Radius (r) = 4 feet
Height (h) = 30 feet
Surface area = 2 * 3.14 * 4 * 30 + 2 * 3.14 * 4^2
Surface area = 753.6 + 100.48
Surface area = 854 ft^2
The farmer will need approximately 854 square feet of aluminum to refinish the side of the silo.