# Find Perimeter of a triangle

Last Updated : 17 Feb, 2023

Given side (a, b, c) of a triangle, we have to find the perimeter of a triangle.

Perimeter :
Perimeter of a triangle is the sum of the length of side of a triangle.

where a, b, c are length of side of a triangle.
Perimeter of a triangle can simply be evaluated using following formula :

Examples :

```Input : a = 2.0, b = 3.0, c = 5.0
Output : 10.0

Input : a = 5.0, b = 6.0, c = 7.0
Output : 18.0```

## C++

 `// A simple C++ program to find the perimeter ``// of triangle ``#include ``using` `namespace` `std; `` ` `// Function to find perimeter ``float` `findPerimeter(``float` `a, ``float` `b, ``float` `c) ``{ ``     ` `    ``// Formula for finding a perimeter ``    ``// of triangle ``    ``return` `(a + b + c); ``} `` ` `// Driver Code ``int` `main()  ``{ ``    ``float` `a = 2.0, b = 3.0, c = 5.0; ``    ``cout << findPerimeter(a, b, c);   ``    ``return` `0; ``} `` ` `// This code is contributed by Ankita saini`

## C

 `// A simple C program to find the perimeter ``// of triangle ``#include `` ` `// Function to find perimeter ``float` `findPerimeter(``float` `a, ``float` `b, ``float` `c) ``{ ``    ``// Formula for finding a perimeter of triangle ``    ``return` `(a + b + c); ``} `` ` `// Driver Code ``int` `main() ``{ ``    ``float` `a = 2.0, b = 3.0, c = 5.0; ``    ``printf``(``"%f"``, findPerimeter(a, b, c));   ``    ``return` `0; ``} `

## Java

 `// Java program to find perimeter ``// of triangle ``class` `Test { ``    ``static` `float` `findPerimeter(``float` `a, ``float` `b, ``float` `c) ``    ``{ ``        ``// Formula for Perimeter of triangle ``        ``return` `(a + b + c); ``    ``} `` ` `    ``// Driver method ``    ``public` `static` `void` `main(String[] args) ``    ``{ ``        ``float` `a = ``2.0``, b = ``3.0``, c = ``5.0``; ``        ``System.out.println(findPerimeter(a, b, c)); ``    ``} ``} `

## Python

 `# Python Program to find a perimeter ``# of triangle `` ` `# Function to find perimeter ``def` `findPerimeter(a, b, c): `` ` `    ``# Calculate the perimeter ``    ``return` `(a ``+` `b ``+` `c) `` ` `# Driver Code     ``a ``=` `2.0``b ``=` `3.0``c ``=` `5.0``print``(findPerimeter(a, b, c)) `

## C#

 `// C# program to find perimeter ``// of triangle ``using` `System; `` ` `class` `Test { ``     ` `    ``static` `float` `findPerimeter(``float` `a,  ``                           ``float` `b, ``float` `c) ``    ``{ ``         ` `        ``// Formula for Perimeter of triangle ``        ``return` `(a + b + c); ``    ``} `` ` `    ``// Driver method ``    ``public` `static` `void` `Main() ``    ``{ ``        ``float` `a = 2.0f, b = 3.0f, c = 5.0f; ``         ` `        ``Console.WriteLine(findPerimeter(a, b, c)); ``    ``} ``} `` ` `//This code is contributed by vt_m.  `

## PHP

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## Javascript

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Output :

`10.0`

Time Complexity: O(1)

Auxiliary Space: O(1)

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