Two stations P and Q on the main survey line were taken on the opposite sides of a pond On the right of PQ a line PR 210 m long was laid down and another l ine PS 260m long was laid down on the left of PQ The points R Q and S are on the sam
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Two stations P and Q on the main survey line were taken on the opposite sides of a pond. On the right of PQ, a line PR = 210 m long was laid down and another l ine PS = 260m long was laid down on the left of PQ. The points R, Q and S are on the sam

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By:Nikhil-bharadwaj

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RS = RQ+QS=85+75=160 m
In ∆PRS, Let angle PRS = θ, cos θ = PR2+ RS2 PS2
                                                     _____________
                                                      2 x PR x RS
cos θ = 2102+ 1602 2602
           _______________
             2 x 210 x 160
      θ = 88.210
 In ∆PQR, Let angle PRS = θ,
cos θ = PR2+ RQ2 PQ2
           ______________
               2 x PR x RQ
Cos88.210= 2102+ 852 PQ2
                   _____________
                     2 x 210 x 160


manjarimattur

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