Asked by Daniela

An observer in a lighthouse 48.8 m above sea level saw two vessels moving directly towards the lighthouse. He observed that the angles of depression are 42 and 35 degrees. Find the distance between the two vessels, assuming that they are coming from the same side of the tower.
Answered by Anonymous
x is distance between
d is how close the close one is

I assume they are on exactly the same bearing , not just the same side, or the problem is meaningless. People who write math books do not navigate.

tan 42 = 48.8/d

tan 35 = 48.8/(d+x)

so
d = 48.8/tan42
so
d = 54.2
and
54.2 + x = 48.8/tan 35 = 69.7
so
x = 69.7-54.2


Answered by crestine
thank you for the answer....
Answered by Anonymous
15.49
Answered by kia
an observed lighthouse 60
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