Question 984419
Hi dear,
Let L=lengh
     w=width
If L*w=160----(1)
and L=3+2w---(2)
put (2) in (1)
(3+2w)w=160
2w²+3w-160=0
solving quadratic equation,
*[invoke quadratic "x",2,3,-160]
Since w=8 aproximately,
put w=8 in in equ 2
there L=3+2*8
       L=19m
the lenght is 19m
hope this helps;