The angle of depression of a boat from the top of a cliff...
The angle of depression of a boat from the top of a cliff 10m high is 30. How far is the boat from the foot of the cliff?
5√3m3
5√3m
10√3m
10√3m3
Correct answer is C
RQP = 90o
PQS = 30o but
RQS = 90o = RS10
RS = 10 tan 60o
RS = 10 tan 60o
RS = 10√3m
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