The accompanying figure shows two ships at points P and Q, which are in the same vertical plane as an airplane at point R. When the height of the airplane is h 4300 ft, the angle of depression to P is 48°, and that to Q is 25°. Find the distance between the two ships. Round the answer to the nearest 10 feet. PQ = ft 48° 250

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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.