Word problem, solving triangle using law of sines

Calculus
Tutor: None Selected Time limit: 1 Day

A tree that is 63 feet tall is growing at an angle of 80°

 with respect to the ground (see the figure below). Kevin, who is standing a certain distance away from the base of the tree, finds that the angle of elevation from the ground to the top of the tree is 
. How far is he from the base of the tree? Round your answer to the nearest tenth of a foot.
May 3rd, 2015

80 + 37 = 117

180- 117 = 63

cos 63 = 63/x

0.16974975 = 63/x

x= 54

May 3rd, 2015

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May 3rd, 2015
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May 3rd, 2015
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