public static void Main()
Console.WriteLine("Enter Radius of the Circle");
r=Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Enter Base and Height of the Triangle");
b=Convert.ToInt32(Console.ReadLine());
h=Convert.ToInt32(Console.ReadLine());
Console.WriteLine("Area of TRINGLE is "+ar1);
Console.WriteLine("Area of CIRCLE is"+ar);