A man 5 ft 5 in. tall stands on a sidewalk that slopes down at a constant angle. A vertical street lamp directly behind him causes his shadow to be 26 ft long. The angle of depression from the top of the man to the tip of his shadow is 31°. If the man is 25 ft down the sidewalk from the street lamp, find the height of the light above the sidewalk. (Round your answer to two decimal places.)
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.
A man 5 ft 5 in. tall stands on a sidewalk that slopes down at a constant
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