Aleksandr has a roll of paper that is in the shape of a right circular cylinder. It has a height of 28 cm and a diameter of 15.5 cm. Help Aleksandr solve for the surface area. Use 3.14 for π.(1 point)
Responses
1,362.76 cm2
1,362.76 cm squared
1,508.77 cm2
1,508.77 cm squared
4,234.29 cm2
4,234.29 cm squared
1,739.95 cm2
The surface area of a right circular cylinder is calculated using the formula:
Surface area = 2πr(r + h)
Given:
- Diameter = 15.5 cm (radius = 15.5/2 = 7.75 cm)
- Height = 28 cm
Surface area = 2 * 3.14 * 7.75 * (7.75 + 28)
Surface area = 2 * 3.14 * 7.75 * 35.75
Surface area = 484.75 * 3.14
Surface area = 1,521.23 cm2
Therefore, the closest option is:
1,508.77 cm2
1,508.77 cm squared