You are at the top of a lighthouse and measure the angle of depression of an approaching ship. If the lighthouse is 90 feet tall and the angle of depression of the ship is 4.12°, how far from the lighthouse is the ship? Round your answer to the nearest multiple of 10.
Ratios
A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.
Trigonometric Ratios
Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.
You are at the top of a lighthouse and measure the
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