Sam S.

asked • 6d

Im not sure where i went wrong with this question

Question: From the top of a cliff 112 m high, the angle of depression to a boat is 9°15′. How far is the boat from the foot of the cliff?


I tried doing this:


cos(9 degrees 15 minutes) = 112/x

x * cos(9 degrees 15 mins) = 112

x = 112/cos(9 degrees 15 mins)

and yet i get 113 m...

The answer is 600-something apparently, don't know where I'm going wrong. Please help!

2 Answers By Expert Tutors

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B7edea4e b611 4f93 a834 1dc55a46dbf0

Paul M. answered • 6d

Compassionate and experienced college math instructor and tutor

Sam S.

right. I mis-read the question and thought ''foot of the cliff'' meant at the top of the cliff, when really it's at the bottom
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