Question

Goal: Use mathematical functions, capture input from the user, and display the result of an operation.

Assignment: Write a program to calculate the area of a rectangle. The formula to calculate the area $A$ of a rectangle is:

$A=$ length $**$ width

Your program should ask the user to input the length and width of the rectangle in meters and then calculate and display the area.

Sample Run $($user input between :

Enter the length of the rectangle in meters:

Enter the width of the rectangle in meters:

The area of the rectangle is: $50$ square meters.

Note: You must write A complete C$++$ program, comprehensive of any inclusion preprocessor directives, namespace declaration, and the main function with its return. Use the

sample run to determine which messages to display to the user.