In quadrantal bearing system, back bearing of a line may be obtained from its forward bearing, by
Civil Engineering
Surveying
Choose an option
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Aadding 180°, if the given bearing is less than 180°
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Bsubtracting 180°, if the given bearing, is more than 180°
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Cchanging the cardinal points, i.e. substituting N for S and E for W and vice-versa
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Dnone of these.
Answer
Correct Answer: changing the cardinal points, i.e. substituting N for S and E for W and vice-versa