A blimp provides aerial television views of a football game. The television camera sights the stadium at an 18° angle of depression. The altitude of the blimp is 400m. What is the line-of-sight distance from the television camera to the base of the stadium? Round to the nearest hundred meters. 18 400 m The line-of-sight distance is approximately m.

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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.