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
the value of pi.
The formula for finding the surface area of a right circular cylinder is:
Surface Area = 2πr(r + h)
Given that the diameter is 0.50 inches, the radius (r) would be half of that:
r = 0.50 / 2 = 0.25 inches
The height (h) of the cylinder is given as 36 inches.
Plugging in the values, we get:
Surface Area = 2 * 3.14 * 0.25 * (0.25 + 36)
Surface Area = 6.28 * 0.25 * 36.25
Surface Area = 6.28 * 9.0625
Surface Area = 57.0305 square inches
Therefore, the surface area of the steel rod is 57.03 square inches.