Closed loop traverse ABCD has the following bearings: $(20$ marks$)$

$AB$: $N41{30}^{\text{'}}E$

$BC$:$S48{30}^{\text{'}}E$

$CD$:$S41{30}^{\text{'}}W$

$DA$:$N48{30}^{\text{'}}W$

$($a$)$ Draw a sketch

$($b$)$ Compute the interior angles

$($c$)$ Provide a geometric check for internal angles.

$($d$)$ Compute azimuths of $AB,BC,CD$ and DA $.$

$2$