How to find Volume and Surface Area of a Sphere using C#?

For volume and surface area of a sphere, firstly declare a variable with the value of radius.

int r = 15;

Get the volume f the sphere.

// calculating volume of sphere cal_volume = (4.0 / 3) * (22 / 7) * r * r * r;

Now the surface area of the sphere is calculated −

cal_area = 4 * (22 / 7) * r * r;

Let us see the complete code −

Example

 Live Demo

using System; using System.Collections.Generic; public class Demo {    public static void Main(string[] args) {       double cal_area, cal_volume, r;       // radius       r = 15;       // calculating area of sphere       cal_area = 4 * (22 / 7) * r * r;       // calculating volume of sphere       cal_volume = (4.0 / 3) * (22 / 7) * r * r * r;       Console.WriteLine("Area of Sphere: " + cal_area);       Console.WriteLine("Volume of Sphere: " + cal_volume);    } }

Output

Area of Sphere: 2700 Volume of Sphere: 13500