Question

Find the surface area of this cylinder using pie.

Answer 1

Thus, the surface area of a cylinder involving pie is:

`\:\:\:A=36\pi \:` in²

or

`A\approx 113.1` in²

Explanation:

Given

• radius = r = 2 in

• height = h = 7 in

Using the formula to determine the surface area of a cylinder:

`A=2\pi \:rh+2\pi \:r^2`

`A=\left(2* \pi * \:2* 7\right)+\left(2* \pi * \:2^2\right)\:`

`\:\:\:A=36\pi \:` in²

Thus, the surface area of a cylinder involving pie is:

`\:\:\:A=36\pi \:` in²

or

`A\approx 113.1` in²