$3$ Frames

$5.$ Determine the components of the reactions at pins A and $E$ if the frame is loaded by a clockwise couple of magnitude $80$ Nm applied

$($a$)$ at $B$

The dimensions are $x=0\mathrm{.}2m,y=0\mathrm{.}15m,$ and

$($b$)$ at $D.z=0\mathrm{.}25m$