Question 363730
The dimensions of the rectangle can be computed if area of rectangle is given.

Let x = width of rectangle
   2x = length of rectangle

   A  = area of rectangle

   A  = x * 2x
      = 2x ^2
       
2x^2  = A
 x^2  = A/2
  x   = A^(1/2) / 2^(1/2)
 2x   = 2A^(1/2) / 2^(1/2)