C# program to demonstrate the use of PI property of Math class
using System;
class Sample
{
//Entry point of Program
static public void Main()
{
double AreaOfCircle = 0.0;
int radius = 12;
AreaOfCircle = (Math.PI * radius * radius);
System.Console.WriteLine("Area of Circle: "+AreaOfCircle);
}
}
Area of Circle: 452.38934211693
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