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5. A total station is set up over point "BM 1"and a zenith angle of 84°45'38" to the top of a tower. The horizontal distance from “BM 1"to the tower

is 347.68 feet. The H.I. of the total station is 5.16 feet and the elevation of "BM 1" is 115.98 feet. What is the elevation at the top of the tower? (Draw a sketch below to support your answer)

Fig: 1