$3.$ A truss is subjected to five concentrated loads as shown in the image. Determine the forces acting in elements $\backslash ($ C D$,$ C F $\backslash )$ and $\backslash ($ F G $\backslash ).$ State whether the elements are subjected to tension or compression. The truss is pin$-$supported at $\backslash ($ A $\backslash )$ and roller$-$supported at $\backslash ($ E $\backslash ).$ Present the appropriate FBD for each analysis performed, and clearly state the equilibrium equations used in the analysis. Solutions without these two elements will be graded as zero. Hint: Use method of coction