Points X and Y are respectively 20km North and 9km East of a point O. What is the bearing of Y from X? Correct to the nearest degree
-
A.
024o -
B.
114o -
C.
156o -
D.
204o -
E.
336o
Correct Answer: Option C
Explanation
tan(theta) = 9/20 = 0.45
(theta) = tan(^{-1}) 0.45 = 24.2°
the bearing of y from x = 180 0 – 0 = 180° – 24.2°
the bearing = 155.8°
(approxeq) 156°