I feel like im doing my code right but its not right at all. Important: Make sure that all functions are properly documented with comments. "Every function declaration $($prototype$)$ should have comments

immediately preceding it that describe what the function does and how to use it$"($from Google's C$++$ Style Guide$).$ The body of each function should contain

comments just like we have done for main$()$ in past assignments.

Write a program that prompts the user to enter two properties of the regular polygon: the number of sides and the length of each side. The program should then

output the polygon's name followed by the number of sides, length of each side, perimeter, interior angle, apothem, and area. If the shape has fewer than $3$ sides,

the program will only report the name, the number of sides, and the length of each side. Numbers should be displayed with $4$ digits of precision.

Name your source code file Polygons.cpp$.$

First, define PI as a global constant $($assume $=3\mathrm{.}14159265)$ to be used in some of the calculations. Note: All other variables, should be declared within your

functions.

Your program must have at least the following functions. Use the names given here:

a$.$ getPolygonName: This function accepts a single parameter, which is the number of sides of the polygon. The function returns the name of the polygon. Use

the following names in a switch statement:

If the input is not one of these values, return an empty string.

b$.$ getPerimeter: This function accepts two parameters: the number of sides and the length of a side $($in that order$).$ The function calculates and returns the

perimeter of the polygon by multiplying the parameters by each other. Hint: Make your function definitions succinct. The body of this function $($and several

others$)$ can be written in a single line $($just a return statement$)$ with no local variables.

c$.$ get InteriorAngle: This function calculates the angle in degrees within the shape based on the number of sides. The parameter will be the number of sides.

The formula for this calculation is $180\frac{n-2}{n}$ where $n$ is the number of sides. Use a more meaningful identifier than $n$ in your code.

d$.$ getApothem: This function accepts two parameters $($the number of sides and the length of a side$)$ that are used to calculate the apothem of a regular polygon.

The apothem $($sometimes called the inradius$)$ is the shortest distance from the center to one of the sides. The formula for this calculation is $\frac{l}{2tan(\frac{}{n})}$

where $l$ is the length of a side and $n$ is the number of sides. Note use more meaningful identifiers for $l$ and $n$ in your program $($e$.$g$.,$ sideLength and

sideCount$).$ The tan function is predefined in the cmath library.

e$.$ getArea: This function also accepts the number of sides and the length of a side as its only parameters. However, the function will calculate the area from the

perimeter and apothem. Call the functions getPerimeter$()$ and getApothem$()$ within this function and use the formula: area $=p\frac{a}{2}$ where $p$ is the

perimeter and $a$ is the apothem. Again, use more meaningful identifiers than in the given formula.

The functions in the list above should NOT get any input from the user or display any information $($i$.$e$,$ do not use cin or cout$).$ Use main and$/$or another function to

get user input and display the results.