Show me the steps to solve

a$)$ Identify all the zero force members in the truss shown and draw a FBD of the truss with these members removed.

b$)$ Using method of joints determine the internal force in members $GH,HI,GI.$ State if the members are in tension or compression.

Hello part A and B is done but can you do part C and D$.$ I prevoiusly asked this question but i forgot to put the forces.

For remaning parts of the question $($ Part C and D$)$ use F$1=30$kn and F$2=45$kn

C$)$ Solve the reactions at A and J$?$

D: Using method of sections, draw a section FBD and determine the internal force in members DE$,$ EJ and IJ$.$ State if the members are in tension or compression?