Program to Calculate the Perimeter of a Decagon

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++

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// 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;
}

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C

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// 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;
}

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Java

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/*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

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Python3

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# 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

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C#

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// 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

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PHP

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<?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); 
?>

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Output:

The Perimeter of Decagon is : 50


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Improved By : jit_t, vt_m, SURENDRA_GANGWAR