<?php

require 'AreaCalculavel.php';
require 'Triangulo.php';
require 'Test.php';
$t = new Triangulo();
$t->definirAltura(5);
$t->definirLargura(10);
$teste = new Test();
$teste->mostrarInformacao($t);
<?php

require 'AreaCalculavel.php';
require 'Triangulo.php';
$t = new Triangulo();
$t->definirAltura(10);
$t->definirLargura(20);
echo $t->calculaArea();