Aleksandr has a roll of paper that is in the shape of a circular cylinder it has a height of 28 cm and a diameter of 15.5 cm help aleksandr solve fot the surface area . Use 3.14

Answer 1

To find the surface area of the cylinder, we can use the formula:

Surface area = 2πr^2 + 2πrh

First, let's find the radius:
Radius (r) = diameter / 2 = 15.5 cm / 2 = 7.75 cm

Now we can substitute the values into the formula:

Surface area = 2 * 3.14 * (7.75)^2 + 2 * 3.14 * 7.75 * 28
Surface area = 2 * 3.14 * 60.0625 + 2 * 3.14 * 217
Surface area = 376.96 + 1359.16
Surface area = 1736.12 cm^2

Therefore, the surface area of the cylinder is 1736.12 square centimeters.