1. The problem statement, all variables and given/known data Double Shear Pin Connection 2. Relevant equations ∑Fx = -2V + P = 0 3. The attempt at a solution When calculating the shear force along the planes of the pin, where I have a reaction at Ax and Ay, why do I have to use the magnitude of the reaction force as opposed to the axial force that is acting colinear to the shear plane? For example, if I have a horizontal reaction of 34.64 kN and a vertical reaction of 20 kN, why am I wrong for using 34.64 kN, instead of √34.642 + 202, to determine my shear forces? Wouldn't the magnitude of the force have to be projected along the same shear plane thus returning me to my original horizontal reaction?