See Our team

Wondering how we keep quality?

Got unsolved questions?

Ask Questions

Engineering
GATE
CBSE
NCERT
Psychology
English
Computer
Constitution
Astrology
Yoga
Economics
Physics
Biology
Electronics
Microprocessor
Career
Interview
Anatomy
Botany

## 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

.By:Nikhil-bharadwaj

Taged users:

Likes:

Be first to like this question

Dislikes:

Be first to dislike this question

Talk about thisDelete|Like|Dislike|

## Answers

RS = RQ+QS=85+75=160 m

In ∆PRS, Let angle PRS = θ, cos θ = PR

^{2}+ RS^{2}– PS^{2} _____________

2 x PR x RS

cos θ = 210

^{2}+ 160^{2}– 260^{2} _______________

2 x 210 x 160

θ = 88.210

In ∆PQR, Let angle PRS = θ,

cos θ = PR

^{2}+ RQ^{2}– PQ^{2} ______________

2 x PR x RQ

Cos88.210= 210

^{2}+ 85^{2}– PQ^{2} _____________

2 x 210 x 160

manjarimattur

Likes:

Be first to like this answer

Dislikes:

Be first to dislike this answer

Talk about this|Once you have earned teacher badge you can edit this questionDelete|Like|Dislike|

------------------------------------

## Use Me ?