A$)$Consider DE as the cut member what is the internal force of member, $AB$ at joint $A$

B$)$ Consider DE as the cut member what is the internal force of member, $CD$ at joint $C$

C$)$ Consider DE as the cut member what is the internal force of member, $EF$ at joint $E$

D$)$ Consider DE as the cut member what is the internal force of member, $EC$ at joint $C$

E$)$Consider DE as the cut member what is the internal force of member, FD at joint D

F$)$ Consider DE as the cut member what is the internal force of member, $AD$ at joint $D$

G$)$ Consider DE as the cut member what is the internal force of member, $AC$ at joint $C$

H$)$Consider DE as the cut member what is the internal force of member, BD at joint D

i$)$Apply a unit load at joints $D$ and $E$ in an appropriate direction and find the vertical