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4 years ago

PLEASE HELP!!!! :(

1 answer:

4 0

The tangent of the angle gives the ratio of the height of the lighthouse to the boat's distance
.. tan(angle of depression) = (lighthouse height)/(boat distance)
Then the distance to the boat is
.. boat distance = (lighthouse height)/tan(angle of depression)

We want to find the difference between two distances, so
.. boat travel = (lighthouse height)*(1/tan(first angle) -1/(tan(second angle))
.. = (200 ft)*(1/tan(17°31') -1/tan(46°41'))
.. ≈ 445.10 ft

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To the person who deleted my answer earlier because i said i dint know what kind of question this was well i was ASKING because the answer is in the question. i wasnt saying i didnt know what the answer was!!! but just to let you know the ANSWER IS C.

so please dont DELETE my answer next time and READ IT europa2433 ! thanks for coming to my ted talk :)

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