Question 1020604
Let {{{ C }}} = circumference
{{{ C = 2*pi*r }}}
You are given that:
{{{ pi/2 = 2*pi*r }}}
Divide both sides by {{{ pi }}}
{{{ 1/2 = 2r }}}
{{{ r = 1/4 }}}
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Let {{{ A }}} = area of the circle
{{{ A = pi*r^2 }}}
{{{ A = pi*( 1/4 )^2 }}}
{{{ A = pi/16 }}}