$\Sigma M_E = 0$
$\frac{3}{\sqrt{13}}F_{DF}(\frac{40}{3}) = 100(20) + 200(10)$
$F_{DF} = 360.5551 ~ \text{kN}$ tension answer
$\Sigma M_A = 0$
$\frac{2}{\sqrt{5}}F_{EF}(20) = 200(20) + 200(10)$
$F_{EF} = 335.4102 ~ \text{kN}$ tension answer
$\Sigma M_F = 0$
$20F_{EG} = 100(30) + 200(20) + 200(10)$
$F_{EG} = 450 ~ \text{kN}$ compression answer