Find the perimeter of a cylinder

Given diameter and height, find the perimeter of a cylinder.
Perimeter is the length of the outline of a two - dimensional shape. A cylinder is a three - dimensional shape. So, technically we cannot find the perimeter of a cylinder but we can find the perimeter of the cross-section of the cylinder. This can be done by creating the projection on its base, thus, creating the projection on its side, then the shape would be reduced to a rectangle.
 

Formula : 
Perimeter of cylinder ( P ) = ( 2 * d ) + ( 2 * h )   
here d is the diameter of the cylinder 
h is the height of the cylinder
Examples : 
 

Input : diameter = 5, height = 10 
Output : Perimeter = 30

Input : diameter = 50, height = 150 
Output : Perimeter = 400

// CPP program to find 
// perimeter of cylinder
#include <iostream>
using namespace std;

// Function to calculate perimeter
int perimeter(int diameter, int height)
{
    return 2 * (diameter + height);
}

// Driver function
int main()
{
    int diameter = 5;
    int height = 10;
    
    cout << "Perimeter = "; 
    cout<< perimeter(diameter, height);
    cout<<" units\n";
    
    return 0;
}

// Java program to find 
// perimeter of cylinder
import java.io.*;

class GFG {

    // Function to calculate perimeter
    static int perimeter(int diameter, int height)
    {
        return 2 * (diameter + height);
    }
    
    /* Driver program to test above function */
    public static void main(String[] args)
    {
        int diameter = 5;
        int height = 10;
        System.out.println("Perimeter = " +
                         perimeter(diameter, height) 
                                       + " units\n");
    }
}

// This code is contributed by Gitanjali.

# Function to calculate 
# the perimeter of a cylinder
def perimeter( diameter, height ) :
    return 2 * ( diameter + height ) 

# Driver function
diameter = 5 ;
height = 10 ;
print ("Perimeter = ",
            perimeter(diameter, height))

// C# program to find perimeter of cylinder
using System;

class GFG {

    // Function to calculate perimeter
    static int perimeter(int diameter, int height)
    {
        return 2 * (diameter + height);
    }
    
    /* Driver program to test above function */
    public static void Main(String[] args)
    {
        int diameter = 5;
        int height = 10;
        Console.Write("Perimeter = " +
                       perimeter(diameter, height) 
                                    + " units\n");
    }
}

// This code is contributed by parashar...

<?php
// PHP program to find 
// perimeter of cylinder

// Function to calculate perimeter
function perimeter($diameter, $height)
{
    return 2 * ($diameter + $height);
}

    // Driver Code
    $diameter = 5;
    $height = 10;
    
    echo("Perimeter = "); 
    echo(perimeter($diameter, $height));
    echo(" units");
    
// This code is contributed by vt_m.
?>

<script>

// javascript program to find 
// perimeter of cylinder

// Function to calculate perimeter
    function perimeter(diameter, height)
    {
        return 2 * (diameter + height);
    }

// Driver Function

         let diameter = 5;
        let height = 10;
        document.write("Perimeter = " +
                         perimeter(diameter, height) 
                                       + " units\n");
    
    // This code is contributed by susmitakundugoaldanga.
</script>

Output : 
 

Perimeter = 30 units

Time Complexity: O(1) 
Auxiliary Space: O(1)