/* * C# Program to find Volume and Surface Area of a Sphere */ using System; using System.IO; class program { public static void Main() { double r, surface_area, volume; double PI = 3.14; Console.WriteLine("Enter the Radius of the Sphere: "); r = Convert.ToDouble(Console.ReadLine()); surface_area = 4* PI * r * r; volume = (4.0 / 3) * PI * r * r * r; Console.WriteLine("Surface Area of Sphere is : {0} ", surface_area); Console.WriteLine("Volume of Sphere is : {0}", volume); Console.Read(); } } /* Enter the Radius of Sphere : 5 Surface Area of Sphere is : 314 Volume of Sphere is : 523.333333333333333