Question: 4.18 In trigonometric leveling from point A to point B, the slope distance and zenith angle measured at A were 5462.46 ft and 94 08'36.

4.18 In trigonometric leveling from point A to point B, the slope distance and zenith angle measured at A were 5462.46 ft and 94 08'36". At B these measurements were 5462.58 ft and 85 51'32" respectively. If the instrument and rod target heights were equal, calculate the difference in elevation from A to B

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