A surveyor is supposed to determine the elevation at point B. (S)he starts from a known Benchmark, stablishes several turning points and records Back-sight (BS) and Foresight (FS) readings over them, which are presented in the following sketch. Calculate the elevation at each turning point (TP) and at point B in ft. (write your answers in a table format, Moving direction 1.35 1.06 1.45 1.12 1.67 1.13 1.85 1.25 TPS 1.71 1.15 TP3 1.50 1.00 TP2 BS FS TP1 BM = 1200 ft.

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