Question 612347
Area of a circle = {{{pi*r^2}}}
{{{380=pi*r^2}}}
{{{380/pi=r^2}}}
{{{380/3.14=r^2}}}
{{{121.02=r^2}}}
{{{r=sqrt(121.02)}}}
r = 11.001


so, the radius is 11.001 inches