Regular Polygon Sides: $21$

Regular Polygon Side Length: $2\mathrm{.}5$

Right Triangle Side Length $1$: $9\mathrm{.}3$

Right Triangle Side Length $2$: $3\mathrm{.}5$

Rectangle Side Length $1$: $2$

Rectangle Side Length $2$: $2\mathrm{.}6$

In MatLab: First, your program should determine if the inputs are formatted properly. The rules are as follows:

$-$ numSides must be a positive integer number with values greater than or equal to $3.$

$-$ When numSides is $3$ or $4,$ sideLengths can either be a scalar or an array with two values.

$-$ When numSides is greater than $4,$ sideLengths must be a scalar.

To determine if a number is an integer, you can use the rem function. rem returns the remainder of whole

number division. It has the following syntax:

remainder $=$ rem$($numerator$,$ denominator$)$;

Where remainder is the remainder of numerator$/$denominator$.$ To use this to find whether a

number is an integer, use rem in the following way:

remainder $=$ rem$($number$,1)$;

When number is an integer, remainder will be $0.$ Otherwise, remainder will be nonzero.

To determine how many numbers are contained in an array, use the length function. The length

function has the following syntax:

N $=$ length$($arrayName$)$;

Where N is the number of elements $($i$.$e$.$ the number of numbers$)$ contained in array arrayName.

$3$ different ways of calculating area of the polygon.

$-$ When numSides is $3$ and sideLengths is an array with two numbers, you will calculate the

area of a right triangle, where the two numbers inside of sideLengths are the sides of the

triangle that are not the hypotenuse.

$-$ When numSides is $4$ and sideLengths is an array with two numbers, you will calculate the area of a rectangle where the two numbers inside of sideLengths are your two different lengths for the sides of your rectangle.

$-$ In all other valid cases, the scalar sideLengths is the length of all fsides of the polygon, no matter what numSides is

Thanks!