The C# program will ask the user to enter the length and width of a rectangle, and then display the rectangles length, width and area on the computer screen. (See sample output below) The programs Main function must call the following four functions:

getLength This function should ask the user to enter the rectangles length, validate it, and then return that value as a double to the main function.

getWidth -This function should ask the user to enter the rectangles width, validate it, and then return that value as a double to the main function.

getArea This function should accept the rectangles length and width as arguments, compute the rectangles area with these arguments and return the rectangles area to themain function. The area is calculated by multiplying the length by the width.

displayData This function should accept the rectangles length, width, and area as arguments, and display them in an appropriate message on the computer screen (see sample output below).Input Validation: Do not accept length and width values lower than 0

Sample Output: Enter the length: -5 ERROR: Enter a positive number. Enter the length: 15 Enter the width: -3 ERROR: Enter a positive number. Enter the width: 30 Rectangle Data Length: 15 Width: 30 Area: 450 Press any key to continue