<PRE><B>Question 1046071</B>
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|----32 degrees
|------
|--------
|
|
|===================================Boat
---------------------4500m----------------------
That is the same as the angle of elevation from the boat to the top of the cliff.  
The tangent is opposite over adjacent, where opposite is the height of the cliff and adjacent is 4500m.
tan 32=x/4500
x=4500 tan 32=2811.91 or 2812 m.
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