Two points A and B are in the HP. Point A is 30 mm in front of the VP, while B is behind the VP. The distance between their projectors is 75 mm, and the line joining their top views makes an angle of 45⁰ with the xy. Find the distance of point B from the VP.

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Errors in surveying

An error in surveying is defined as the difference between two or more values of an identical quantity. However, the estimates are never accurate and there will always be a degree of variability regardless of the research tool or method used. These differences are known as errors that need to be reduced or eliminated to maintain certain levels of accuracy. Even if you carefully follow the prescribed test procedures, the considerations may contain errors.