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WAP to find out the area of circle

using System;

using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Area_Circle
{
Class Program
{
static void main(string[] args)

{

double Pi = 3.14;

double R, A;

Console.WriteLine("Input radius of a circle.");

R= Convert.ToInt32(Console.ReadLine());

A = (Pi*(R*R));

Console.WriteLine("The area of a circle is :{0}", A);

Console.ReadLine();

}

}

}



OutPut:

Input radius of a circle.

5

The area of a circle is: 78.5



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