A naval ship is stationed in calm waters. The sonar detects a submarine at a depth of about 350 meters and a horizontal distance of 750 meters, What the distance between the ship and the submarine? What is the angle of depression to the submarine?

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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.