Trigonometrymedium · Past Paper
From top of cliff 20 m high, angle of depression of a buoy is 30°. Distance of buoy?
A20√3 m
B20 m
C40 m
D10√3 m
✓ Correct Answer: A — 20√3 m
tan 30 = 20 / d. 1/√3 = 20 / d => d = 20√3 m.
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