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Geometry and Trigonometry
Coordinate Systems and Bearings
Distance and Bearing Calculation
P, Q and R are three fire towers. Q is 40 km N 72°E of P and R is 48 km S 55° E of P. Find the distance between R and Q and bearing of R from Q.
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It's handy to think of P,R and Q as complex numbers, with P=(0,0). Find Q-R and then convert to polar form.
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