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Points X and Y are 20km North and 9km East of point O, re...

Points X and Y are 20km North and 9km East of point O, respectively. What is the bearing of Y from X? Correct to the nearest degree.

A.

24°

B.

56°

C.

127°

D.

156°

Correct answer is D

tanθ=920=0.45

θ=tan1(0.45)

= 24.23°

The bearing of Y from X = 180° - 24.23°

= 155.77°

= 156° (to the nearest degree)