Answer:
10 ft
Step-by-step explanation:
The area of a circle is given by
A = pi r^2
314.2 = pi r^2
Let pi be approximated by 3.142
314.2 = 3.142 r^2
Divide each side by 3.142
314.2/3.142 = 3.142 r^2/3.142
100 = r^2
Take the square root of each side
sqrt(100) = sqrt(r^2)
10 =r
