Question

Find the surface area of a cylinder

Answer 1

A = 2•3.14•3•8 + 2•3.14•3^2 = 207.34512

Answer 2

Surface area = 207.24 in²

Explanation:

Remember to always convert the diameter into a radius.

D = 6 in (divide it by two to get the radius) R = 3 in

Radius = 3 in

Formula:

SA = 2
`\pi`rh + 2
`\pi`r²

Solution:

SA = 2
`\pi`rh + 2
`\pi`r²

SA = 2(3.14)(3)(8) + 2(3.14)(3)

SA = 2(3.14)(3)(8) + 2(3.14)(9)

SA = 150.72 + 56.52

SA = 207.24 in²