alleryStart learning →From the top of a 90 m tower the angle of depression of a boat is 60°. How far is the boat from the tower's foot?
A30√3 m
B90√3 m
C45 m
D30 m
Answer & Solution
Correct answer: A. 30√3 m
Distance = 90 / tan 60° = 90/√3 = 30√3 m.
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