- A40/√3 m
- B40√3 m
- C20 m
- D80 m
Step-by-Step Solution
The angle of depression equals the angle of elevation from the boat: tan 60° = 40/d, so d = 40/√3 m (about 23.1 m).
Answer: A) 40/√3 m
A boat is seen from the top of a 40 m high cliff at an angle of depression of 60°. How far is the boat from the foot of the cliff?
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