## Assignment 7-1

- Create a new Xcode project. Name it
**Assignment-7-1**. - Add
`#include math.h`

to the**main.c**file right under`#include <stdio.h>`

. - Access the Wikipedia page for a sphere. You’ll need it for your program’s formulas.
- Program steps and features.
- The program will have
**four**(4) functions. The**main**function counts as one and there will be**3 more**. - Create a function that calculates and returns the
**surface area**of a sphere. It will have one parameter that is the**radius**of a sphere.- The function must use the constant for
**pi**, and the function that raises a value to the power of another value, from the**math.h**library.

- The function must use the constant for
- Create a function that calculates and returns the
**volume**of a sphere. It will have one parameter that is the**radius**of a sphere.- The function must use the constant for
**pi**, and the function that raises a value to the power of another value, from the**math.h**library.

- The function must use the constant for
- Create a function that uses
`printf`

statements and outputs the following. It will have one parameter that is the**radius**of a sphere.

- The formatting of the output must be:
- The radius will display
**one**decimal place. - The surface area will display
**16**decimal places. - The volume will display
**16**decimal places.

- The radius will display
- In the
**main**function call the previous function at least three times with different arguments that are the radius of spheres. Make sure that one of the values is something like`4.5`

. - The final output will look something this, depending on the values you use:

- The program will have
**Program verification**Don’t skip this part, it’s worth points.- In a comment below your program you must write in detail how you verified that your program is giving you the correct output. It is
**not**enough to just say you used a calculator. You must list and describe the steps you took and list the inputs and outputs that you used. Here are some ways that you could verify the results:- Use a scientific calculator.
- Use a spreadsheet.
- Use an online calculator. List the link if you do this.

- In a comment below your program you must write in detail how you verified that your program is giving you the correct output. It is

### IMPORTANT NOTE!!!

All values in the previous examples are incorrect. They were just typed and are not the result of a running program.

Do notuse them to confirm the accuracy of your program.