static void Main(string[] args)
{
Console.Write("Enter radius: ");
int r = Int32.Parse(Consle.ReadLine());
Console.WriteLine("P is {0} and S is {1}", 2 * Math.PI * r, Math.PI * r * r);
}
static void Main(string[] args)
{
double height;
double depth;
double lenght;
double litres;
double gallons;
Console.WriteLine("Please enter the height of the fish tank in cm");
height = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Please enter the depth of the fish tank in cm");
depth = Convert.ToInt32(Consle.ReadLine());
Console.WriteLine("Please enter the legth of the fish tank in cm");
lenth = Convert.ToInt32(Console.ReadLine());
volume = (heigth * depth * length) / 1000;
Console.Writeline("Your volume of water: {0}", volume);
Console.ReadLine();
gallons = volume * 0.219969;
Console.WriteLine("Your water in UK gallons: {0}", gallons);
Console.ReadLine();
}
static void Main(string[] args)
{
Console.Write("Enter radius: ");
int a = Int32.Parse(Consle.ReadLine());
Console.Write("Second number: ");
int b = Int32.Parse(Consle.ReadLine());
Console.Write("Third number: ");
int c = Int32.Parse(Consle.ReadLine());
Console.WriteLine("Result is {0}", a + b + c);
}