Answer:
A. Triangulation Method
Step-by-step explanation:
The rectangular facilitate mapping strategy is a somewhat progressively precise variety of the benchmark technique since it uses two such baselines rather than one. Two estimations are taken to a point on a thing or area at the scene. One from each recognized gauge. Some work force decide to quantify to at least two focuses on a thing, utilizing different rectangular estimations as a method for expanding precision, while others basically decide to gauge to a self-assertively distinguished focus mass of the item being referred to or point to which the estimations are being taken. Similarly as with the standard strategy, it can't be resolved that such estimations are taken unequivocally at 90 degree edges from the pattern, so there exists a more prominent chance of blunders than with a portion of different strategies. In any case, because of this strategy having two estimations, it has a lot more prominent exactness than with the single line standard technique. This strategy is particularly helpful in kept spaces and littler inside scenes.