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