Question: The slope distance and zenith angle 1 point between points A and B were observed with a total station instrument as 9585.26ft . and 81deg42min.20sec
The slope distance and zenith angle\ 1 point between points
Aand
Bwere observed with a total station instrument as
9585.26ft. and
81deg42min.20secrespectively. The
H. I and rod readings "r" were equal. If the elevation of
Ais
1238.42ft. compute the elevation of
B. Consider the effect of curvature and refraction correction.
Hcr=0.0206square meter, where
Mis in thousands of feet.\
3000.04ft\
4000.04ft\
2623.04ft\
2625.04ft 
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