OperatorsExpressionsAndStatements - Task 7

using System;
/*
*Write an expression that checks if given point (x,  y) is inside a circle K({0, 0}, 2)
*/
class PointInCircle
{
    static void Main()
    {
        float radious;
        float pointX;
        float pointY;
        bool inCircle;
        Console.WriteLine("What's circle's radious?");
        radious = float.Parse(Console.ReadLine());
        Console.WriteLine("Please enter value of X");
        pointX = float.Parse(Console.ReadLine());
        Console.WriteLine("Please enter value of Y");
        pointY = float.Parse(Console.ReadLine());
        inCircle = radious * radious - (pointX * pointX + pointY * pointY) > 0; //theorem of Pythagoras a^2 + b^2 =c^2
        if (inCircle)
        {
            Console.WriteLine("The point is in the circle!");
        }
        else
        {
            Console.WriteLine("The point is outside the circle");
        }
    }
}