1. The problem statement, all variables and given/known data I'm supposed to quantify the picture below and show how to find D and the angle theta. http://img10.imageshack.us/img10/7079/labg.jpg [Broken] 2. Relevant equations none i can think of 3. The attempt at a solution I guess S and H are the same. I really can't think of a way to find D or theta though. Don't you need D to find theta?