Problem a$),$ b$)$ and c$)$:

Use the method of joints, the method of sections, or both to solve the following trusses. Draw F$.$B$.$D$.$s for all your calculations.

Calculate the reactions at the supports;

Identify all the zero force members in the trusses;

Find the internal forces for all truss members in a$)$ and b$),$ and marked member in c$)$;

Indicate your final results on the truss system.