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The angles at the stations of a closed traverse ABCDEFA were observed as given in a table below.

Adjust the angular error in the observations, if any, and calculate the bearings of the traverse lines

if the whole circle bearing of the line AB is N42°E. Assume uniform conditions at the time of

observation of each angle and that the angles were measured with the same precision.

Traverse

Station

at

A

B

C

D

E

F

W

to

B

C

D

E

F

A

Line

AB

BC

CD

DE

EF

FA

Included

angle

120°35'00"

89°23'40"

131°01'00"

128°02′20"

94°54'40"

155°59'20"

Correction

Adjusted

angle

Bearing

Fig: 1