static void Main(string[] args)
{
MyCircle myCircleA = new MyCircle(new MyPoint(4, 5), 4);
MyCircle myCircleB = new MyCircle(new MyPoint(5, 8), 4);
Console.WriteLine("hinh tron 1: ");
Console.WriteLine(myCircleA.toString());
Console.WriteLine("hinh tron 2: ");
Console.WriteLine(myCircleB.toString());
Console.Write("Khoang cach giua hinh tron 1 va 2 la: ");
Console.Write(myCircleA.distance(myCircleB));
Console.ReadKey();
}
public double distance(MyCircle another)
{
double result = Math.Sqrt(Math.Pow((another.center.X - this.center.X), 2) + Math.Pow((another.center.Y - this.center.Y), 2));
return(result);
}