You have already demonstrated that the area of a triangle is equal to a half of the product of the base by the height. however, such a demonstration was made with an obtuse angle scalene triangle like this: your task now is to show that the same conclusion is reached with a scale scale triangle like this:
The narrator in El Viejo Goleador, by José Cantero Verni, is talking to a soccer player who is “old” and people did not believe in him.