how to change console window height and width c#

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

namespace ConsoleApplication5
{
    class Program
    {
        static void Main()
        {
       
            Console.WindowWidth = 70;
            Console.WindowHeight = 20;
            Console.WriteLine("Hi........mahesh.. ");
        }
    }
}