Question

Find the surface area of the cylinder. Round your answer to the nearest tenth if necessary. ​

Answer 1

31.4m²

Explanation:

Formula for surface area of a cylinder:

`SA=2\pi rh+2\pi r^(2)`

with r=1 and h=4

`SA=2\pi (1)(4)+2\pi (1)^(2)\\=8\pi +2\pi \\=10\pi \\=31.4`

So, the surface area of this cylinder is 31.4m².

Hope this helps! :)

Answer 2

28.27 m^2

Explanation:

r = 1, h = 4

SA = πr^2 + 2πrh

SA = π(1)^2 + 2π(1)(4)

SA = 1π + 8π

SA = 9π

SA = 28.274

SA = 28.27