Closest 2 points

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

class Point
{
    public double X { get; set; }
    public double Y { get; set; }
}

class ClosestTwoPoints
    {
        static void Main(string[] args)
        {
           Point[] points = ReadPoints(); //•	Create an array Point[] points that will keep all points.
           Point[] closest2Points = FindClosestTwoPoints(points);
           Console.WriteLine("{0:F3}", CalculateDistance(closest2Points[0], closest2Points[1]));
           Printpoint(closest2Points[0]);
           Printpoint(closest2Points[1]);
    }

    private static void Printpoint(Point point)
    {
        Console.WriteLine("({0}, {1})", point.X, point.Y);
    }

    private static Point[] FindClosestTwoPoints(Point[] points)
    {
        double minDistance = double.MaxValue;
        Point[] closestTwoPoints = null;
        for (int i1 = 0; i1 < points.Length; i1++)
        {
            for (int i2 = i1+1; i2 < points.Length; i2++)
            {
                double distance = CalculateDistance(points[i1], points[i2]);
                if (distance<minDistance)
                {
                    minDistance = distance;
                    closestTwoPoints = new Point[] { points[i1], points[i2] };
                }
            }
        }
        return closestTwoPoints;
    }
    private static double CalculateDistance(Point point1, Point point2)
    {
        double sideA = point1.X - point2.X;
        double sideB = point1.Y - point2.Y;
        double distan = Math.Sqrt(sideA * sideA + sideB * sideB);
        return distan;
    }

    private static Point[] ReadPoints()
    {
        int n  = int.Parse(Console.ReadLine());
        Point[] points = new Point[n];
        for (int i = 0; i < n; i++)
        {
            points[i] = ReadPoint();
        }
        return points;
    }

    private static Point ReadPoint()
    {
        double[] array = Console.ReadLine().Split(' ').Select(double.Parse).ToArray();
        Point p = new Point() { X = array[0], Y = array[1] };
        return p;
    }
}