Maria wants to find the surface area of a steel rod that is in the shape of a right circular cylinder. The diameter is 0.50 inches, and the length is 36 inches. What is the surface area? Use 3.14 for π.(1 point)
Responses
56.91 inches2
56.91 inches squared
0.39 inches2
0.39 inches squared
114.61 inches2
114.61 inches squared
56.52 inches2
The surface area of a right circular cylinder can be calculated using the formula: 2πrh + 2πr^2, where r is the radius and h is the height (or length in this case) of the cylinder.
Given that the diameter is 0.50 inches, the radius would be half of that, which is 0.25 inches.
Plugging in the values:
Surface Area = 2 * 3.14 * 0.25 * 36 + 2 * 3.14 * 0.25^2
Surface Area = 56.52 inches squared
Therefore, the surface area of the steel rod is 56.52 inches squared.
Correct Response: 56.52 inches2.