Question 978046
h meters more than ....


p , perimeter,
d, diagonal
w, L width and length


{{{system(p=2w+2L=h+2d,wL=48)}}}


More too.
{{{w^2+L^2=d^2}}}


Put the whole system together.
{{{system(2w+2L=h+2d,w^2+L^2=d^2,wL=48)}}}
which is three equations in three unknown variables.


The best way to continue is for YOU to decide what pathway to use to solve the system of equations.  One way could be to try to use the first two equations in the system to eliminate d, and then work with a system of two equations in just w and L.  
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Understand that you will only find solution formulas in terms of h, without any final value, because you are really NOT given enough information about h.  You have actually three equations in FOUR unknown variables.  h is simply an unknown constant.