1. The problem statement, all variables and given/known data I have attached a picture with the problem and my attempt. The answer is D=L/sqrt(3). I know that a much easier method to solving this is by setting the distance from B to D equal to x. However I wanted a more challenging derivation and set the distance from D to C equal to x. When I do this I keep getting the wrong answer. I have repeated the same problem three times and I am not sure why I cannot get the right answer. Could someone please take a look at my work and give me a hint to what I have been doing wrong? Thanks!