Exercies 31

Ex.31-1 In a traverse ABCDEFG, the line BA is taken as the reference meredian, the coordinates of the sides AB, BC, CD, DE and EF are

Line

AB

BC

CD

DE

EF

Northing (m)

1190.9
565.3
590.5
606.9
1017.2

Easting

0

736.4

796.8

-468.0

370.4

If the bearing of FG is 284° 13' and its length is 896.0m, find the length and bearing of GA.

Ex.31-2 In a closed traverse ABCDE running anti-clockwise, c alculate the missing data:

Line

Length (m)

W.C.B.

AB

343.56

245° 18'

BC

371.08

?

CD

?

113° 37'

DE

417.66

37° 25'

EA

457.25

321° 42'

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