Engineering, 28.02.2020 22:47, ayoismeisjjjjuan

Successive plus and minus sights taken on a downhill line of levels are listed below. The values represent the horizontal distances, in feet, between the instrument and either the plus or minus sights. What combined error results from curvature and refraction?Part A21, 235; 60, 185; 41, 145; 35, 260

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Successive plus and minus sights taken on a downhill line of levels are listed below. The values rep...