public static void Start() { var distance2D = MathExtensions.CalculateDistance2D(1, -2, 3, 4); Console.WriteLine($"Distance in the 2D space = {distance2D:f2}"); var distance3D = MathExtensions.CalculateDistance3D(5, 2, -1, 3, -6, 4); Console.WriteLine($"Distance in the 3D space = {distance3D:f2}"); var rectangle = new Rectangle(3, 4); var rectangleDiagonal = MathExtensions.CalculateDiagonal2D(rectangle); Console.WriteLine($"Diagonal 2D = {rectangleDiagonal:f2}"); var parallelepiped = new Parallelepiped(3, 4, 5); var parallelepipedDiagonal = MathExtensions.CalculateDiagonal3D(parallelepiped); var parallelepipedVolume = MathExtensions.CalculateVolume(parallelepiped); Console.WriteLine($"Diagonal 3D = {parallelepipedDiagonal:f2}"); Console.WriteLine($"Volume = {parallelepipedVolume:f2}"); }