Can somebody plz explian both problems plz

Trusses $4)$ For the truss shown,

a$.$ calculate the reactions at A and $E,$

b$.$ using the method of joints, determine the

forces in each member at Joint A$,$

c$.$ and using the method of sections, determine

the forces in members $BD,CD,$ and $CE.$

$[A_x=0kN,F_{AC}=5\mathrm{.}76kN(T)],[A_y=3\mathrm{.}6karr,F_{BD}=4\mathrm{.}16kN(C)],[E_y=3\mathrm{.}6karr,F_{CD}=1\mathrm{.}87kN(T)],[F_{AB}=6\mathrm{.}24kN(C),F_{CE}=2\mathrm{.}88kN(T)]$

Trusses $5)$ For the truss shown,

a$.$ calculate the reactions at $F$ and $G,$

b$.$ using the method of joints, determine the

forces in each member at Joint $G,$ and

c$.$ using the method of sections, determine

the forces in members $BD,CD,$ and $CE.]$

${?}^{**}$ Be sure to indicate tension or compression.

$F_x=130kN,F_{FG}=16\mathrm{.}25kN(T)$

$F_y=50karr,F_{BD}=40kN(T)$

$G_x=130$kNlarr,$F_{CD}=64\mathrm{.}3kN(T)$

$F_{EG}=131kN(C),F_{CE}=92\mathrm{.}1kN(C)$