1. The problem statement, all variables and given/known data 2. Relevant equations Here is the problem and solution to the problem: I don't understand how it is finding the forces on the bolts when it takes ƩMcd. What is going on there? I also don't see how sin(45) is coming into play. Is there a different/better way to approach this problem? I seem to have a better way on the tip of my brain but just can't think of it. Thank you.