PHP hypot()

The hypot() function returns the length of the hypotenuse of a 90-degree or “right-angle” triangle.

Syntax

$hypotenuse = hypot($length1, $length2);

Given a right-angle triangle with sides $length1 and $length2, the function returns the result of the following formula:

$hypotenuse = \sqrt{length1^2 + length2^2}$

The function accepts two float inputs and returns a value of type float.

Example

This example calculates the hypotenuse of a right-angle triangle with sides of length 6 and 8.

<?php
  $hypotenuse = hypot(6, 8);
  echo $hypotenuse;
?>

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This example results in the following output:

10

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Codebyte Example

This example returns the hypotenuse for a 90-degree triangle with sides of length 12 and 16:

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