Question

a circular piece of wire is converted into a square of side 5.5 cm.. if there is no loss or gain in its length then find the radius of the circle...

Answer 1

perimeter of square = circumference of circle
     4 * 5.5                 = 2* pi *r

     22                       = 2 *22/7*r

                 r              = 22*7/22*2
                                 =7/2=3.5 cm