A camera is mounted on a tripod 4 feet high at a distance of 9 feet from George, who is 5 feet tall. Look at the model to the right. If the camera lens has angles of depression and elevation of 22°, will George's feet and head be seen by the lens? If not, how far back will the camera need to be moved to include George's feet and head? 22° 5' 9'

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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.