# Sqrt(float)

> Returns square root of f.

## Definition

* **Type:** Method
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public static float Sqrt(float f)
```

### Parameters

**** (\[float]\(https\://learn.microsoft.com/dotnet/api/system.single)): 

### Returns

| Type                                                          | Description |
| ------------------------------------------------------------- | ----------- |
| [float](https://learn.microsoft.com/dotnet/api/system.single) |             |

### Examples

```csharp
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    // The formula made famous by Pythagoras, also used internally by
    // Vector3.Distance and several other standard functions.
    float HypotenuseLength(float sideALength, float sideBLength)
    {
        return Mathf.Sqrt(sideALength * sideALength + sideBLength * sideBLength);
    }
}
```