Question 18 The Horizontal Positions Of Two Benchmarks Are Given The Coordinates Of The Benchmark A Are Na 1500 00 M A 1 (44.43 KiB) Viewed 38 times
Question 18 The horizontal positions of two benchmarks are given. The coordinates of the benchmark A are: NA-1500.00 m and EA-1500.00 m The coordinates of the benchmark 8 are: Ng 1853.55 m and Eg - 1853.55 m. The horizontal coordinates of a new point P were measured by applying the angle-angle intersection. The angle SpAg at the point A is 44°. The angle BABP at the point B is 45° (see Fig. Q18) Po OBP 18 B PAB ΔΑ Fig. Q18 Firstly, compute the geodetic azimuths (bearings) app and app from measured angles BPAR and BARP Then apply the bearing-bearing intersection method to compute the horizontal coordinates Np and Ep of a point P according to the following expressions: E-E-N, td-N₂ tan d N₂ = (tan-tana) E-N₁-N-E, cota-E c EQ.18 (cota-cota) The horizontal coordinates of a new polet Pare CLAP B. BABP D
Firstly, compute the geodetic azimuths (bearings) aap and app from measured angles BPAR and BARP Then apply the bearing-bearing intersection method to compute the horizontal coordinates Np and Ep of a point P according to the following expressions: N₂ = E₁-E-N, tm-N₂ tan d (tan -tan (p) N₁-N-Ecota-E cet a EQ.18 (cota-cota) The horizontal coordinates of a new point P are:
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