Hey there!
When finding the area of a circle, you'll use the following formula:
[tex]A = \pi r^{2} [/tex]
A = area
r = radius
All you need to do is plug in your given radius and solve for A.
[tex]A = \pi r^{2} [/tex]
[tex]A = (3.14) (8^{2}) [/tex]
[tex]A = (3.14) (64) [/tex]
[tex]A = 200.96 [/tex]
The area of your circle will be 200.96 ft.
Hope this helped you out! :-)