Answer:
Step-by-step explanation:
Width = x
Length = 2x
Area of the ground = 0.125 square mile
length * width = 0.125
 2x * x = 0.125
   2x² = 0.125
    x² = [tex]\frac{0.125}{2}\\\\[/tex]
      = 0.0625
    [tex]x^{2}=\frac{625}{10000}\\\\x=\sqrt{\frac{625}{10000}}\\\\ x=\frac{25}{100}\\\\x=0.25[/tex]
Width = 0.25 miles
Length = 2* 0.25 = 0.50 miles