Given a regular hexagon of side length a, the task is to find the length of it’s diagonal.
Examples:
Input : a = 4 Output : 8 Input : a = 7 Output : 14
From the diagram, it is clear that the triangle ABC is an equilateral triangle, so
AB = AC = BC = a.
also it is obvious, diagonal = 2*AC or 2*BC
So the length of diagonal of the hexagon = 2*a
Below is the implementation of the above approach:
C++
// C++ Program to find the diagonal// of the hexagon#include <bits/stdc++.h>using namespace std;// Function to find the diagonal// of the hexagonfloat hexadiagonal(float a){ // side cannot be negative if (a < 0) return -1; // diagonal of the hexagon return 2 * a;}// Driver codeint main(){ float a = 4; cout << hexadiagonal(a) << endl; return 0;} |
C
// C Program to find the diagonal// of the hexagon#include <stdio.h>// Function to find the diagonal// of the hexagonfloat hexadiagonal(float a){ // side cannot be negative if (a < 0) return -1; // diagonal of the hexagon return 2 * a;} // Driver codeint main(){ float a = 4; printf("%f\n",hexadiagonal(a)); return 0;} |
Java
// Java Program to find the diagonal// of the hexagonimport java.io.*;class GFG {// Function to find the diagonal// of the hexagonstatic float hexadiagonal(float a){ // side cannot be negative if (a < 0) return -1; // diagonal of the hexagon return 2 * a;}// Driver code public static void main (String[] args) { float a = 4; System.out.print( hexadiagonal(a));}}// This code is contributed// by shs |
Python3
# Python3 Program to find the diagonal# of the hexagon# Function to find the diagonal# of the hexagondef hexadiagonal(a): # side cannot be negative if (a < 0): return -1 # diagonal of the hexagon return 2 * a# Driver codeif __name__=='__main__': a = 4 print(hexadiagonal(a))# This code is contributed by # Shivi_Aggarwal |
C#
// C# Program to find the diagonal// of the hexagonusing System;class GFG { // Function to find the diagonal // of the hexagon static float hexadiagonal(float a) { // side cannot be negative if (a < 0) return -1; // diagonal of the hexagon return 2 * a; }// Driver codepublic static void Main(){ float a = 4; Console.WriteLine( hexadiagonal(a));}}// This code is contributed// by anuj_67.. |
PHP
<?php// PHP Program to find the diagonal// of the hexagon// Function to find the diagonal// of the hexagonfunction hexadiagonal($a){ // side cannot be negative if ($a < 0) return -1; // diagonal of the hexagon return 2 * $a;}// Driver code $a = 4; echo hexadiagonal($a); // This code is contributed// by anuj_67..?> |
Javascript
<script>// javascript Program to find the diagonal// of the hexagon// Function to find the diagonal// of the hexagonfunction hexadiagonal(a){ // side cannot be negative if (a < 0) return -1; // diagonal of the hexagon return 2 * a;}// Driver codevar a = 4;document.write( hexadiagonal(a));// This code is contributed by 29AjayKumar </script> |
Output:
8
Time complexity: O(1), since there is no loop or recursion.
Auxiliary Space: O(1), since no extra space has been taken.
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