Function main

Lab_01/07_circle.cpp:7–26

using namespace std;

int main()
{
	cout << "\t\tC++ program to Calculate Area and Circumference of Circle.\n";
	float R, Area, Circumference;
	cout << "Please enter the Radius of Circle: ";
	cin >> R;

	if (R > 0) {
		Area = 3.14 * R * R;
		Circumference = 2 * 3.14 * R;
		cout << "Area of Circle is " << Area << ";" << endl;
		cout << "Circumference of Circle is " << Circumference << ";" << endl;
	}
	else {
		cout << "Negative numbers cannot be applied !!!" << endl;
	}
	
	system("pause");
	return 0;
}