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OLga
[1]
3 years ago
11
A balloon flying at 3000 feet above the ocean measures the angles of depression of each end of an island directly in front of th
e balloon to be 75.8° and 15.6°. What is the length of the island to the nearest tenth of a mile?
Mathematics
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answer:
saul85
[17]
3 years ago
3
0
The length of the island will be given as follows:
tan θ=opposite/adjacent
thus:
tan75.8= 3000/a1
a1=3000tan75.8
a1=11855.885 ft
also:
tan15.6=3000/a2
a2=3000tan15.6
a2=837.62 ft
Thus the length of the island will be:
11855.885-837.615
=11,018.24 ft
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