A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed the angle of depression to the boat is 18°33'. When the boat stops, the angle of depression is 51°33'. The lighthouse is 200 feet tall. How far did the boat travel from when it was first noticed until it stopped? Round your answer to the hundredths place.

Question

anas.p · Answer

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you can find a by using$$\cos x = (200/a)$$Let (a-b) be equal to z
and you can find (a-b) by using $$\cos y (200/z)$$
now z-a will give you the distance moved.

anonymous · Answer

What is z?

anas.p · Answer

z=(a-b)
i have mentioned it above.