the radius of the circle is 6 ft.
The area of a circle is computed by multiplying pi to the square of the radius.
Area of a circle = π r²
based on the formula, radius can be derived by dividing the area by the pi and finding the square root of the quotient.
113.04 = 3.14 * r²
r² = 113.04 / 3.14
r² = 36
r = √36
r = 6 ft.