find the area of a circle in csharp

To find the area of a circle in C#, you can use the formula A = πr^2, where A is the area of the circle, π is the mathematical constant pi (approximately equal to 3.14159), and r is the radius of the circle.

Here's the code for finding the area of a circle in C#:

main.cs
double radius = 5.0;
double area = Math.PI * radius * radius;
Console.WriteLine("The area of the circle is: " + area);
119 chars
4 lines

In this example, we assume that the radius of the circle is 5.0 units. You can replace the value of the radius with your own input.

The output of the above code will be:

main.cs
The area of the circle is: 78.53981633974483
45 chars
2 lines