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.

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 Option: Answer is D

Solution:

tanθ=9/20=0.45
θ=tan−1(0.45)
= 24.23°
∴ The bearing of Y from X = 180° – 24.23°
= 155.77°
= 156° (to the nearest degree)

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