Question #$2$: $(10$ marks$/20)[$ABET: $1\mathrm{.}1,1\mathrm{.}2$ and $1\mathrm{.}3]$

Consider the truss shown in the following figure $($Figure #$2).$ Determine:

$1-$ The support reactions at $nA$ and roller E$.[$ABET: $1\mathrm{.}1-2$ Marks$]$

$2-$ The forces in members AB$,$ AG$,$ ED and EF$.[$ABET: $1\mathrm{.}3-6$ Marks$]$

$3-$ State if the members are in tension or compression $[$ABET: $1\mathrm{.}1-2$ Marks$]$