Question

Write a program to find the area of pentagon using function

Answer 1

// C++ program to find the area of Pentagon

#include<bits/stdc++.h>

using namespace std;

// Function to find area of pentagon

float findArea(float a)

{

float area;

// Formula to find area

area = (sqrt(5 * (5 + 2 * (sqrt(5)))) * a * a) / 4;

return area;

}

// Driver code

int main()

{

float a = 5;

// function calling

cout << "Area of Pentagon: " << findArea(a);

return 0;

}

Output:

Area of Pentagon: 43.0119