Complete the following code by adding:
(1) A function called AreaBox that takes two arguments, the length and width of the rectangle and returns the Area of a rectangle.
(2) A function called PerimeterBox that takes two arguments, the length and width of the rectangle and returns the perimeter of a rectangle.
(3) A Function called Rectangle that gets the length and the width of the rectangle from the user and displays the area and the perimeter of the corresponding rectangle.
Rectangles