Question 763924
Width = xcm
Length = 4 + 2x cm
Perimeter = 2*length + 2*width
       86 = 2(4 + 2x) + 2x
       86 = 8 + 4x + 2x
      86 - 8 = 6x
          6x = 78
           x = 13cm
Width = 13cm
Length = 30cm
Hope this helps.
:-)