Write a C++ program that calculates the Perimeter of a circle. The main function asks the user to input the diameter (i.e., d) of the circle . Then the main function calls another function to...

Write a C++ program that calculates thePerimeter
of a circle. The main function asks the user to input the diameter (i.e., d) of the
circle. Then the main function calls another function to calculate thePerimeterof thatcircle. Finally, the main function displays thePerimeterof thecircle.

Recall that