I used Sin Law to answer this question. Angle Z corresponds with the side that it face. So it will be 8/sin(90) = x/ sin(57) Where x is the side that you are looking for. Once you cross multiply you get 8sin(57) = x sin(90). After that divide sin(90) to solve for x, which is the side that you are looking for. And I got 3.9 to the nearest tenth of a foot.
