Let the width of the rectangle be x Then, the length of the rectangle will be 2x The area of the rectangle will be 2x(x)=2x^2 Since the area of the rectangle is 162cm2 2x^2=162 x^2=81 x=9 Width of the rectangle=9 Length of the rectangle=9x2=18 Perimeter of a rectangle =2(width) + 2(length) =2(9)+2(18) =54cm
