At 3:00 PM, a boat is located 12.5 miles due west of a radar station and is traveling at 11 mph in a direction that is 57.3° south of an east-west line, as in the picture below: 12.5 mi 57.3 At what time will the boat be the closest to the radar station?

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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.