include "Shape.php"; include "Circle.php"; include "Triangle.php"; include "Rectangle.php"; $circle = new Circle($_POST['cRadius']); $triangle = new Triangle($_POST['tBase'], $_POST['tHeight']); $rectangle = new Rectangle($_POST['rWidth'], $_POST['rHeight']); if ($_POST['cAdjust']) { $circleAdjust = $_POST['cAdjust']; $circleArea = $circle->CalculateSize($_POST['cRadius'], 0); $circle->shapeWidth = $circle->adjustSize($circleArea, $circleAdjust); } if ($_POST['tAdjust']) { $triangleAdjust = $_POST['tAdjust']; $triangleBase = $_POST['tBase']; $triangle->shapeWidth = $triangle->adjustSize($triangleBase, $triangleAdjust); $triangle->shapeHeight = $_POST['tHeight']; } ?> <h1>Circle</h1> <form action="Index.php" method="post"> Radius: <input type="text" name="cRadius" value=<?php echo $circle->shapeWidth; ?> > <h1>Triangle</h1> Height: <input type="text" name="tHeight"