Question 388918
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Hi,         
<img src=" http://upload.wikimedia.org/wikipedia/commons/thumb/7/7e/Trigonometry_triangle.svg/200px-Trigonometry_triangle.svg.png ">
In this example b = 300m and &#8736;A = 58° and a is the height of the cliff 
 tan 58° = opp/adj = a/300m  
 300m* tan 58° = 480.1m = a, the height of the cliff