An airplane is flying at a constant altitude of 10 miles above the ground and passes directly over a radar antenna. When the plane is 14 miles away (d = 14), the radar detects that the distance, d, is changing at a rate of 227 miles per hour. What is the change in the angle between the horizon and tower (labeled as 0 in the picture)?

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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.