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. Use 3.14 for pi and round your answer to the nearest tenth
The formula for the surface area of a cylinder is given by 2πrh + 2πr^2, where r is the radius and h is the height.
Plugging in the values we have, the surface area of the silo is:
2 * 3.14 * 4 * 30 + 2 * 3.14 * 4^2
= 753.12 + 100.48
= 853.6
Rounded to the nearest tenth, the farmer needs to refinish approximately 853.6 square feet of aluminum.