Question 467956
  <pre><font face = "Tohoma" size = 4 color = "indigo"><b> 
Hi,
<img src="http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/PerimeterRectangle.svg/200px-PerimeterRectangle.svg.png">
width of a rectangle is one third its length
Let 3x and x represent the width and length respectively
Question states***
 2*x + 2(3x) = 16cm
Solving for x
     8x = 16ccm
      x = 2cm, the length.  the width is 6cm   (3*2cm)

CHECKING our Answer***
  2*2cmm + 2*6cm = 16cm