Write a program to find area of following shapes: circle, rectangle, triangle,
square, trapezoid and parallelogram.
<?php
function square($var) {
return $var * $var;
}
function equilateral_triangle($side) {
return 0.43301 * ($side * $side);
}
function rectangle($vala, $valb) {
return $vala * $valb;
}
function parallelogram($base, $height) {
return $base * $height;
}
function triangle($base, $height) {
return 0.5 * $base * $height;
}
function circle($radius) {
return 3.14 * ($radius * $radius);
}
function ellipse($radius1, $radius2) {
return 3.14 * $radius1 * $radius2;
}
function trapezoid($height, $base1, $base2) {
return (($base1 + $base2) / 2) * $height;
}
echo square(4); // 16
echo "<br>";
echo equilateral_triangle(4); // 6.92816
echo "<br>";
echo circle(15); // 706.5
echo "<br>";
echo rectangle(15,15); // 225
echo "<br>";
echo parallelogram(15,5); // 75
echo "<br>";
echo triangle(15,5); // 37.5
echo "<br>";
echo ellipse(15,5); // 235.5
echo "<br>";
echo trapezoid(10,10,10); // 100
?>
Output
