we have given area of circle[tex] =\pi r^2=144\pi [/tex]
[tex] r=12ft [/tex]
we know that surface area of sphere is [tex] 4\pi r^2 [/tex]=[tex] 4*\pi *(144)=576\pi ft^2 [/tex]
volume of the sphere[tex] =\frac{4}{3} \pi r^3=\frac{4}{3} *\pi (12)^3=2304\pi ft^3 [/tex].