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At Sta. A you observe the following slope distance and zenith angle to Sta. B: 1087.602...

At Sta. A you observe the following slope distance and zenith angle to Sta. B: 1087.602 m, 88°46'23". The instrument and rod heights were set to be equal. The elevation of Sta. A above the datum is 74.238 meters. What is the elevation of Sta. B in meters?

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