Question 939340
 area of circle (a) ={{{ pi*r^2}}}
  {{{ pi  = 22/7 =3.14}}}
     a  = 154 
   {{{ (22/7)*r^2  = 154 }}}
       multiply with 7 on both sides
{{{(22/7)*r^2*7  = 154*7 }}}
{{{22*r^2=154*7}}}
   divide with 22 0n both sides
{{{22*r^2/22= 154*7/22}}}
  {{{r^2 = 7*7}}}
     {{{ sqrt(r^2)= sqrt(7*7)}}}
        r= 7 inches
perimeter =2*pi*r 
         ={{{2*(22/7)*7}}}
       =44 inches
result: perimeter = 44 inches