PointInRectangular

using System;
using System.Collections.Generic;
using System.Linq;

namespace T2.CheckPointVsTriangle
{
    class PointInTriangle
    {
        static void Main()
        {
            Console.WriteLine("Given 3 points A, B and C, forming triangle, and a point P");
            Console.WriteLine("Check if the point P is in the triangle or not\n");

            //  triangle points
            Point a = new Point(-3.45, -2.12);
            Point b = new Point(6.82, 1.9);
            Point c = new Point(3.1, 10.4);

            //  points to check

 //           Point p = new Point(-4.8, 9.2);
            Point p = new Point(3.2, 4.82);

            //  find outermost coordinates of the triangle
            double minX = Math.Min(Math.Min(a.X,b.X),c.X);
            double maxX = Math.Max(Math.Max(a.X,b.X),c.X);

            double minY = Math.Min(Math.Min(a.Y,b.Y),c.Y);
            double maxY = Math.Max(Math.Max(a.Y,b.Y),c.Y);

            //  check if the point is in the triangle or not
            bool inTriangle = minX < p.X && p.X < maxX && minY < p.Y && p.Y < maxY;
            Console.Write("Is the point {0} inside the triangle\n\n{1} {2} {3} ? \t", p, a, b, c);
            Console.WriteLine(inTriangle);
            Console.WriteLine();
        }
    }
}

using System;

namespace T2.CheckPointVsTriangle
{
    class Point
    {
        public double X { get; set; }
        public double Y { get; set; }

        public Point(double x, double y)
        {
            this.X = x;
            this.Y = y;
        }

        public override string ToString()
        {
            string result = string.Format("({0}, {1})", this.X, this.Y);
            return result;
        }
    }
}