1. The problem statement, all variables and given/known data 2. Relevant equations In static equilibrium the forces are = 0 Method of Joints 3. The attempt at a solution i dont know how to find the reaction forces of A and B. i know how to calculate the force of each member by working backwards from where F is applied but once I do that, how will I know the reaction force? isn't there an easier way using symmetry and do the lengths of the members matter?