find-perimeter-hexagon()

Step 1: Understand the Problem

In this exercise, we need to find the perimeter of a hexagon. The formula for finding the perimeter of a hexagon is: Perimeter = 6 * Side, where 'Side' is the length of a side of the hexagon.

First, let's start by defining a function findPerimeterHexagon which takes one parameter: side. This parameter will be the length of a side of our hexagon.

func findPerimeterHexagon(side: Double) -> Double {
    // Implementation of function will go here
}

Step 2: Implement the Perimeter Calculation

Let's implement our perimeter calculation. We'll use the formula Perimeter = 6 * Side.

func findPerimeterHexagon(side: Double) -> Double {
    let perimeter = 6 * side
    return perimeter
}

Step 3: Test the Function

In order to make sure our function works correctly, let's test it with a simple example.

let result = findPerimeterHexagon(side: 5)
print(result) // Expected output: 30

Step 4: Validation of Input

We have to make sure that our function handles invalid inputs gracefully. We could add a condition to check whether the argument passed to side is a non-negative value or not. If it is negative, the function should return nil.

func findPerimeterHexagon(side: Double) -> Double? {
    if side < 0 {
        return nil
    }
    let perimeter = 6 * side
    return perimeter
}

Step 5: Conclusion

Finding the perimeter of a hexagon is a relatively straightforward task in Swift. A key aspect to understand is that the formula to calculate the perimeter of a hexagon is simply six times the length of one of its sides.

Here is the full function:

func findPerimeterHexagon(side: Double) -> Double? {
    if side < 0 {
        return nil
    }
    let perimeter = 6 * side
    return perimeter
}

In our solution, the function takes a Double representing the length of a side of the hexagon as its argument, calculates the perimeter of the hexagon using the formula Perimeter = 6 * Side, and returns the perimeter. If the length of the side given is a negative number, the function will return nil to signify that it could not perform the calculation.