For a line of length L with whole-circle bearing θ measured clockwise from north, its latitude is calculated as:
Correct answer: D. L cos θ
- A. L divided by cos θ
- B. L sin θ
- C. L tan θ
- D. L cos θ
Explanation
Latitude is the north-south component of a line, so it equals L cos θ when the bearing is measured from north. The east-west component, called departure, is L sin θ.
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Surveying covers measurement of distances, angles and elevations, traversing, levelling, contouring, plane table work, theodolites, total stations and basic photogrammetry. It includes error adjustment, coordinate calculations, area and volume determination, and the distinction between accuracy and precision, as well as between temporary and permanent adjustments.
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