Find the vertical and horizontal deflections of the joint G of the tr…

Question

Find the vertical and horizontal deflections of the joint G of the truss shown in Fig.1. The sectional area of the Horizontal members is $1500\text{ mm}^2$. Vertical members is $1800\text{ mm}^2$ and that of inclined members is $2500\text{ mm}^2$. Take E = $200\text{ kN/mm}^2$.