Question 932124
<pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
     *[illustration rectangle.png].
 2L + 2w =54cm
L + w = 27cm
L = (27-w)
.....
A = Lw
(27-w)w = 36cm^2
w^2 - 27w + 36 = 0
w = 25.5933866224478, 1.40661337755218
Dimensions are:
25.6 by 1.4

 *[invoke quadratic "x", 1, -27, 36]