Write a program to find the area of pentagon using function

1.	Write a program to find the area of pentagon using function
Answer» // C++ program to find the area of Pentagon #include 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

Answer»

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

#include

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

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