Towns P,Q and R are situated that town Q is 50km due south of town P and town R is 120km due west of town Q .
a) Draw a sketch diagram showing the positions of the three towns.
b) calculate:
i) Distance PR .
ii)To the nearest degree the bearing of P from R.
you should recognize a 5-12-13 right triangle.
The bearing θ of P from R is just
tanθ = 120/50