//	File Name:	hw2.cpp
//	Author:		Michael Collins
//	Instructor:	Dr. John Wang
//	Due Date:	Wed. Sept. 12, 2007
//	Compilation:	g++ hw2.cpp -o hw2.out
//	Execution:	./hw2.out
//	Goal:		This program will print a circles circumference 
//			and area after the user inputs the radius



#include <iostream>

using namespace std;

int main()
{
	// 1. declare variable
	float radius, circumference, area;
	string line = "---------------------------------------------";

	// 2. input - prompt a message
	cout << line;
	cout << "\n\nPlease input the radius of the circle: ";
	cin >> radius;
	cout << "\n";	

	// 3. computing
	area = radius * radius * 3.14;
	circumference = 2 * 3.14 * radius; 

	// 4. output
	cout << "The area of circle is: " << area << "\n\n";
	cout << "The circumference of the circle is: " << circumference << "\n\n";
	cout << line << "\n\n";
	return 0;
}