/* * C# Program to Calculate Area and Volume of a Cone */ using System; using System.IO; class program { public static void Main() { double r, h, surface_area, volume; double PI = 3.14; Console.WriteLine("Enter the Radius and Height of a cone : "); r = Convert.ToDouble(Console.ReadLine()); h = Convert.ToDouble(Console.ReadLine()); surface_area = PI * r * (r + Math.Sqrt(r * r + h * h)); volume = (1.0 / 3) * PI * r * r * h; Console.WriteLine("Surface Area of cone is : {0} ", surface_area); Console.WriteLine("Volume of Cone is : {0}", volume); Console.Read(); } } /* Enter the Radius and Height of a cone : 3 3 Surface Area of cone is : 68.2256752726637 Volume of Cone is : 28.26