The are of the circle is 123 square feet.
As we know that the area of the circle is given by
[tex] A=\pi r^2\\\\Substitute \ the \ value \ of \ the \ area \ we \ get:\\\\123=\pi r^2\\\\r^2=\frac{123}{\pi} \\\\\r=\sqrt{\frac{123}{\pi} } =6.26ft\\\\ [/tex]
