From the top of a cliff 20m high, a boat can be sighted a...
From the top of a cliff 20m high, a boat can be sighted at sea 75m from the foot of the cliff. Calculate the angle of depression of the boat from the top of the cliff
14.9 o
15.5 o
74.5 o
75.1 o
Correct answer is A
tanx=2075=0.267
x = \tan^{-1} 0.267 = 14.93°
\approxeq 14.9°
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