Answer:
The width of the rectangle is
miles
Step-by-step explanation:
Given as for rectangle
The area of rectangle = A =
mile²
The Length of rectangle = L =
mile
Let The width of rectangle = W miles
Now, From area of rectangle
I.e Area of Rectangle = Length × Width
Or , A =
mile × W mile
Or,
mile² =
mile × W mile
or, W =
mile
or, W = 
∴ W =
miles
Hence The width of the rectangle is
miles Answer