The [_HYPOT](_HYPOT) function returns the hypotenuse of a right-angled triangle whose legs are x and y.

## Syntax

> result! = [_HYPOT](_HYPOT)(x, y)

## Parameter(s)

* x and y are the floating point values corresponding to the legs of a right-angled (90 degree) triangle for which the hypotenuse is computed.

## Description

* The function returns what would be the square root of the sum of the squares of x and y (as per the Pythagorean theorem).
* The hypotenuse is the longest side between the two 90 degree angle sides

## Example(s)

```vb

DIM leg_x AS DOUBLE, leg_y AS DOUBLE, result AS DOUBLE
leg_x = 3
leg_y = 4
result = _HYPOT(leg_x, leg_y)
PRINT USING "## , ## and ## form a right-angled triangle."; leg_x; leg_y; result

```

```text

3 , 4 and 5 form a right-angled triangle.

```

## See Also

* [ATN](ATN) (arctangent)
* [_PI](_PI) (function)
* [Mathematical Operations](Mathematical-Operations)
* [C++ reference for hypot() - source of the text and sample above](http://www.cplusplus.com/reference/cmath/hypot/)