Andy C. answered 10/26/17
Tutor
4.9
(27)
Math/Physics Tutor
tan 63.15 = height/80
height = 80* tan 63.15 = 158
To prove the answer is correct, keep reading
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check:
cos 63.15 = 80/hypotneuse
hypotneuse = 80/cos 63.15 = 177.1258378
Phythagorean: 80^2 + 158^2 = 31364 = 177.0988425^2 = hypotneuse^2 , with rounding error
which shows the answer is correct