II$.$ Problems

$(30$ points$)$ For the truss shown, it is known

that force $P=8\mathrm{.}2kN.$

a$.$ Determine if the truss shown is statically

determinate or indeterminate,

b$.$ Calculate the reactions at $G$ and H $,$

c$.$ Using the method of joints, determine the

forces in each member at Joint $A,$ and

d$.$ using the method of sections, determine

the forces in members $DF,DG,$ and EG$.$

Be sure to indicate tension or compression.