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Program to Calculate the Perimeter of a Decagon
  • Last Updated : 01 Apr, 2021

Given side S   of a Decagon, the task is to find out the Perimeter of the Decagon.
Explanation : In geometry, a decagon is a ten-sided polygon or 10-gon. A regular decagon has all sides of equal length and each internal angle will always be equal to 144 degrees.
 

Examples
 

Input : S = 5
Output : The Perimeter of Decagon is : 50

Input : S = 8
Output : The Perimeter of Decagon is : 80

 

The formula for finding the Perimeter of the Decagon is: 
 



Perimeter = 10 * S

where "S" is the side of the Decagon

Below is the program to find perimeter of decagon: 
 

C++




// C++ program to Calculate the Perimeter of a Decagon
#include <iostream>
using namespace std;
 
// Function for finding the perimeter
void CalPeri()
{
    int s = 5, Perimeter;
 
    Perimeter = 10 * s;
 
    cout << "The Perimeter of Decagon is : "
                                << Perimeter;
}
 
// Driver code
int main()
{
    CalPeri();
 
    return 0;
}

C




// C program to Calculate the Perimeter of a Decagon
#include <stdio.h>
 
// Function for finding the perimeter
void CalPeri()
{
    int s = 5, Perimeter;
 
    Perimeter = 10 * s;
 
    printf("The Perimeter of Decagon is : %d",
                                    Perimeter);
}
 
// Driver code
int main()
{
    CalPeri();
 
    return 0;
}

Java




/*package whatever //do not write package name here */
// Java program to Calculate the Perimeter of a Decagon
 
import java.io.*;
 
class GFG {
 
// Function for finding the perimeter
static void CalPeri()
{
    int S = 5, Perimeter;
 
    Perimeter = 10 * S;
 
    System.out.println("The Perimeter of Decagon is : "+
                                Perimeter);
}
 
// Driver code
    public static void main (String[] args) {
            CalPeri();
    }
}
//This Code is contributed by ajit

Python3




# Python3 program to Calculate
# the Perimeter of a Decagon
 
# Function for finding the
# perimeter
def CalPeri():
    s = 5
    Perimeter = 10 * s
 
    print ("The Perimeter of Decagon is : "
           , Perimeter)
 
# Driver code
if __name__ == '__main__':
    CalPeri();
 
# This code is contributed by
# Surendra_Gangwar

C#




// C# program to Calculate the
// Perimeter of a Decagon
using System;
 
class GFG
{
 
// Function for finding the perimeter
static void CalPeri()
{
    int S = 5, Perimeter;
 
    Perimeter = 10 * S;
 
    Console.WriteLine("The Perimeter of " +
                           "Decagon is : "+
                                Perimeter);
}
 
// Driver code
public static void Main ()
{
    CalPeri();
}
}
 
// This Code is contributed
// by anuj_67

PHP




<?php
// PHP program to Calculate the Perimeter of a Decagon
function CalPeri($s)
{
    $Perimeter = 10 * $s;
    echo "The Perimeter of Decagon is : $Perimeter";
}
 
// Driver Code
$s = 5;
CalPeri($s);
?>

Javascript




<script>
 
// JavaScript program to Calculate the Perimeter of a Decagon   
 
// Function for finding the perimeter
    function CalPeri() {
        var S = 5, Perimeter;
 
        Perimeter = 10 * S;
 
        document.write("The Perimeter of Decagon is : " + Perimeter);
    }
 
    // Driver code
     
        CalPeri();
 
// This code contributed by gauravrajput1
 
</script>
Output: 
The Perimeter of Decagon is : 50

 

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