// Add a function 'get_area' that returns the area of a circle. The only
// parameter passed to it is the radius. (should return a double)

// Your function needs to have a local variable called 'PI' which holds the
// value '3.14159'.

// I have provided the function call, you just need to implement the
// function definition.

#include <iostream>
using namespace std;

// write the prototype here


int main()
{
	double radius,
	       area;

	cout << "Enter the radius of your circle : " ;
	cin >> radius;

	area = get_area(radius);

	cout << "The area of your circle is " << area << " units squared." 
             << endl;

	return 0;
}

// write the function here