import java.util.Scanner;

public class CalcularAreaTriangulo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        
        System.out.println("Ingrese la base del triangulo: ");
        double base = scanner.nextDouble();
        
        System.out.println("Ingrese la altura del triangulo: ");
        double altura = scanner.nextDouble();
        
        double area = (base * altura) / 2;
        
        System.out.println("El area del triangulo es: " + area);
        {
        scanner.close();
    }
    
}