Determine the force develops in the member CD$,$ CF$,$ FG of the truss shown below supported by a Pin connection at joint A and a Roller at E$.$ Use Method of Sections. $(45$ pt$)$

Draw Free body diagram of the whole truss $(5$ pt $)$

Use Equilibrium law to find reactions $(15$ pt $)$

Cut through members $(5$ pt $)$

Draw Free body diagram of the section $(5$ pt $)$

Use Equilibrium law to find the forces of the member $(15$ pt $)$