practice3/index.php

<?php
/**
 * Created by PhpStorm.
 * User: root
 * Date: 22.07.18
 * Time: 17:08
 */
require_once('lib/Round.php');
require_once('lib/Point.php');
require_once('lib/Rectangle.php');
require_once('lib/Square.php');
require_once('lib/Segment.php');
require_once('lib/BrokenLine.php');
require_once('lib/Polygon.php');


$obj = new Round([[2, 2], [2, 3], [6, 3], [8, 3], [2, 2]], 3 );
var_dump($obj);