Q$2-$ For the adjacent truss:

A$.$ Determine he horizontal deflection of point $G$ and $A$

B$-$ If you you are asked to reduce the horizontal deflection of A$,$ which members you will select to increase their section area

$E=200000\frac{N}{m}{m}^2$ Constant,

Sections $A1$ and $A2$ are hollow sections, as below

A$1$

A$2$ i need the answer as soon as possible