In the coordinate method for computing the area of a polygon, the algebraic sum of the coordinate products is commonly evaluated by the:
Correct answer: A. Shoelace formula
- A. Shoelace formula
- B. Bowditch method
- C. Double meridian distance method
- D. Rise and fall method
Explanation
The shoelace formula computes polygonal area from the ordered eastings and northings by taking cross-products of successive coordinates. Bowditch adjustment concerns traverse misclosure, while rise and fall is a levelling method.
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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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