The program created, called "Simultaneous calculations," is named Program 1.1a. It contains a code that allows the calculation of the area and volume of a circle and sphere respectively. The purpose of this program is to showcase the use of cout. The following are the details of the program:

Description: Create a program that calculates the area and volume of a circle and sphere by using cout.

To begin the program, the following code was included:

#define _USE_MATH_DEFINES

#include

#include

#include

using namespace std;

In the main function, the first step was to print the prompt texts for the user:

cout