1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution 1. I first found the angles each cable made with the pillar. 2. With these angles I found the components of the forces in the x and y direction. 3. So ∑Fx and ∑Fy were found. 4. Then using these values I equated that ## F = \sqrt(F_x ^2 + F_y ^2) ## 5. The from here I subbed Fb and Fc = Fa and that F = 200kN Then rearranging to get Fa I got Fa = 112.36N however it should be 68.4kN. I am unsure where I have gone wrong. Note vectors are not to be used to solve problem i.e using i, j and k components.