PointInACircle

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

/*
 * Write an expression that checks if given point (x,  y) is inside a circle K({0, 0}, 2).
 */

class PointInACircle
{
    static void Main()
    {
        int circleRad = 2, centerX = 0, centerY = 0;
        float pointX = 0, pointY = 0;
        bool isInCircle;

        Console.WriteLine("Provide point X coordinate:");
        while (!float.TryParse(Console.ReadLine(), out pointX))
        {
            Console.WriteLine("Please, enter valid integer.");
        }
        Console.WriteLine("Provide point Y coordinate:");
        while (!float.TryParse(Console.ReadLine(), out pointY))
        {
            Console.WriteLine("Please, enter valid integer.");
        }

        isInCircle = (Math.Pow((pointX - centerX),2)+Math.Pow((pointY - centerY),2)) <= Math.Pow(circleRad,2);

        Console.WriteLine("\nProvided point with coords ({0};{1}) is {2}", pointX, pointY,isInCircle?"inside the circle." : "outside the circle.\n");
        Console.WriteLine("Press any key to exit.");
        Console.ReadKey();

    }
}