Question 337664
The circumference of a circle is,
{{{C=2*pi*R}}}
The area of a circle is,
{{{A=pi*R^2}}}
{{{A=pi*(C/(2*pi))^2}}}
{{{A=C/(4*pi)}}}
When {{{C=12}}},
{{{A=12/(4*pi)}}}
{{{A=3/pi}}}
Do the same for the second circumference.