To calculate the lateral surface area of a cylinder, you first need to calculate the circumference of the base, as this will be the height of the rectangle formed when the cylinder is unrolled.
The diameter of the cylinder is 3 feet, so the radius is 1.5 feet (half of the diameter). The circumference of the base is calculated using the formula C = 2πr.
C = 2 * π * 1.5
C ≈ 9.42 feet
The height of the cylinder is 4 feet, so the lateral surface area is calculated using the formula A = C * h.
A = 9.42 * 4
A ≈ 37.68 square feet
Rounded to the nearest square foot, Amir will need approximately 38 square feet of wrapping paper.
Therefore, the correct answer is:
038 ft2
Amir is trying to cover the lateral surface area of a cylinder with wrapping paper. The can has a diameter of 3 feet and a height of 4 feet. How much paper does he need? round to the nearest square foot. (1 point)
038 ft2
033 ft2
• 75 ft2
0 52 ft
1 answer
1 answer