# Diagonal of a Regular Hexagon in C++?n

The regular hexagons are comprised of six equilateral triangles so the diagonal of a regular hexagon would be 2*side.

## Example

Let us see the following implementation to get the regular Heptagon diagonal from its side −

Live Demo

#include <iostream>
using namespace std;
int main(){
float side = 12;
if (side < 0)
return -1;
float diagonal = 2*side;
cout << "The diagonal of the regular hexagon = "<<diagonal<< endl;
return 0;
}

## Output

The above code will produce the following output −

The diagonal of the hexagon = 24

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