Question 375824
{{{C=2*pi*R}}}
{{{R=C/(2*pi)}}}
{{{R^2=C^2/(4*pi^2)}}}
{{{A=pi*R^2}}}
{{{A=pi(C^2/(4*pi^2))}}}
{{{A=C^2/(4*pi)}}}
{{{A=15^2/(4*pi)}}}
{{{highlight(A=225/(4*pi))}}}sq.ft.