Question 307954
A=LW

(x)(y)=6

Perimeter=2(w)+2(L)

2(w)+2(L)=16

This one you can see can be done in your head without much work:
      
6x1=6 

and 

6(2)+1(2)=14

So our length would be 6cm and our width would be 1cm

I can't draw on here but I'm sure you can take it from here.

Hope this helps