For the four$-$sided closed traverse shown below answer the following $(25$ pts $.)$:

$($a$)$ Calculate interior angle B

$($b$)$ If the azimuth of AD is $102{44}^{\text{'}},$ compute the azimuths of DC and CB $.$ For the solution proceed in the counter$-$clockwise direction starting at Point D$.$

Interior angles

$A=50{01}^{\text{'}}$

$B=$

$C=42{00}^{\text{'}}$

$D=120{10}^{\text{'}}$