Program to calculate the area and circumference of a circle using C + +

Friend, after we know about concepts and notation algorithm, so it's good we immediately try it on your PC or Laptop our respective companions.The steps are as follows:

    1. Prepare your PC or Laptop friend
    2. Water, thirsty companions fear ... (hehe)
    3. Open application programming friend, here I am using Turbo C + +
    4. Re-type or copy and paste the code below into a worksheet friend



    / / Program to Calculate Area and Circumference Circle
    # Include <iostream>
    void main ()
    {
                   int r;
                   float L;
                   float K;
                   float phi = 3:14;
                   cout << "Calculating Area and Circumference Lingakaran!" << endl;
    cout << endl;
                   cout << "Enter the radius of the Value =";
                   cin >> r;
                   L = pi * r * r;
                   K = 2 * pi * r;
                   cout << "Result Area of ​​the Circle =" << L << endl;
                   cout << "The result Roving Circle =" << K;
    }

     5. Runing programs
     6. Done