find the volume of a regular polygon inscribed in a pyramid in csharp

main.cs
using System;

namespace PyramidVolume
{
    class Program
    {
        static void Main(string[] args)
        {
            int numSides = 4; // number of sides of the regular polygon
            double sideLength = 5; // length of each side of the regular polygon
            double height = 10; // height of the pyramid

            double apothem = sideLength / (2 * Math.Tan(Math.PI / numSides)); // apothem of the regular polygon
            double baseArea = 0.25 * numSides * sideLength * sideLength / Math.Tan(Math.PI / numSides); // area of the regular polygon's base
            double volume = baseArea * height / 3; // volume of the pyramid

            Console.WriteLine("Volume of the pyramid = " + volume);
        }
    }
}
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