1. The problem statement, all variables and given/known data using joint method,indicate all the zero force members in the truss (Note that G is a roller, and A is a pin) 2. Relevant equations [tex]\sum[/tex]Fx, Fy=0 3. The attempt at a solution my solution: consider D, by summation Fx,Fy=0, F(cd),F(de)=0 consider E since[tex]\sum[/tex]Fx=0,=> F(ef)=0 consider C ,take x-axis along BCD, since bar CD is neglected, => F(CB)=0 i am not sure if it is correct ,since the whole structure will be so strange if BC,CD,ED,FE dissappear. My final answer is HB,BC,CD,DE,FE are zero force members Can anyone tell me if my assumption is correct .i am so confused.