Respuesta :

Answer:

L = 13  m     W = 11   m

Step-by-step explanation:

L = W + 2  

area =  L   x   W

143   = (W+2)   *  W

143 =  W^2 + 2w

W^2 + 2W - 143 = 0  

Use Quadratic Formula    (a = 1   b = 2   c = - 143)

   to find   W = 11 m      then   L = 13