Question

Find the surface area of this cylinder using pie.

Answer 1

Answer:

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

$\:\:\:A=36\pi \:$ in²

or

$A\approx 113.1$ in²

Step-by-step explanation:

Given

• radius = r = 2 in

• height = h = 7 in

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

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

$A=\left(2\times \pi \times \:2\times 7\right)+\left(2\times \pi \times \:2^2\right)\:$

$\:\:\:A=36\pi \:$ in²

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

$\:\:\:A=36\pi \:$ in²

or

$A\approx 113.1$ in²