# Hypot()

Today, we will discuss the `hypot()` function in PHP. This function is used to calculate the hypotenuse of a right-angled triangle.

## What is the hypot() Function?

The `hypot()` function in PHP is a built-in function that is used to calculate the hypotenuse of a right-angled triangle. The hypotenuse is the longest side of a right-angled triangle and is calculated using the Pythagorean theorem, which states that the square of the hypotenuse is equal to the sum of the squares of the other two sides. The `hypot()` function takes two numbers as input, which represent the lengths of the other two sides of the right-angled triangle, and returns the length of the hypotenuse.

## How to Use the hypot() Function

Using the `hypot()` function in PHP is very simple. Here is an example of how to use the function:

``````<?php
\$side1 = 3;
\$side2 = 4;

// Calculate the length of the hypotenuse using the hypot() function
\$hypotenuse = hypot(\$side1, \$side2);

// Output the length of the hypotenuse
echo \$hypotenuse;
?>``````

In this example, we set the lengths of the other two sides of the right-angled triangle as variables. We then call the `hypot()` function with the two side lengths as parameters to calculate the length of the hypotenuse. Finally, we output the length of the hypotenuse to the screen.

## Conclusion

The `hypot()` function in PHP is a useful tool for any PHP developer working with right-angled triangles. By using this function, you can calculate the length of the hypotenuse, which can be useful in a variety of applications. We hope that this guide has been helpful in understanding how to use the `hypot()` function in your PHP code.