<?php require_once 'Retangle.php'; require_once 'Square.php'; $areaOfRetangle = new Retangle(15, 15); echo $areaOfRetangle->get_area_of_retangle() . PHP_EOL; echo $areaOfRetangle->get_perimeter() . PHP_EOL; echo $areaOfRetangle->show_width() . PHP_EOL; echo $areaOfRetangle->show_height() . PHP_EOL; $perimeterOfSquare = new Square(10); echo $perimeterOfSquare->get_perimeter() . PHP_EOL; echo $perimeterOfSquare->get_area_of_retangle() . PHP_EOL; echo $perimeterOfSquare->show_width() . PHP_EOL; echo $perimeterOfSquare->show_height() . PHP_EOL;