Need help with activity one! Thanks :)

When traveling in the spanish-speaking countries, it's very important to be able to understand directions in spanish, so that you can find out how to get from place to place. but what happens if you need to give a friend directions? would you be prepared? in this project you'll practice giving directions to places in panama city.

En un triangulo rectangulo, el cateto largo mide 7 unidades mas que el corto a su vez la hipotwnusa mide 1 unidad mas que el cateto que area tiene dicho trangulo

This is very confusing, can someone me? picture above!