Question

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
𝜋
.(1 point)
Responses

56.52 inches2
56.52

inches
2

56.52 inches squared

114.61 inches2
114.61

inches
2

114.61 inches squared

0.39 inches2
0.39

inches
2

0.39 inches squared

56.91 inches2

Answer 1

Radius = 0.50/2 = 0.25 in, height = 36 in. Total surface area = 2πr(h + r).

Using π = 3.14:
SA = 2(3.14)(0.25)(36 + 0.25) = 6.28(0.25)(36.25) = 1.57(36.25) = 56.9125 ≈ 56.91 in^2.

Answer: 56.91 inches^2.