import java.util.Scanner;
public class areaOfTriangle
{
    public static void main(String args[])
    {
        Scanner sc=new Scanner(System.in);
        System.out.println("Enter base of triangle");
        double base=sc.nextDouble();
        System.out.println("Enter height of triangle");
        double height=sc.nextDouble();
        /*Formula of area of triangle =(1/2)*base of triangle *height of triangle*/
        double area=0.5*base*height;
        System.out.println("Area of triangle="+area);
     }
}