The first one isn't actually solvable; you get a system of equations with infinite solutions. The second hint for it implies by looking at a drawing to scale an

The first one isn't actually solvable; you get a system of equations with infinite solutions. The second hint for it implies by looking at a drawing to scale and putting in a few extra lines you'll get it, but it sounds more like you're eyeballing angles. You might as well just pull out the protractor.