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.
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
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