Solve the following word problems: 7. A light atop a 20-foot pole is shining down on a woman who casts a shadow. Suppose she is 15 feet from the pole and suppose the angle of elevation from the end of the shadow to the top of the pole is 30°. (See picture.) How long is the woman's shadow? x = length of shadow %3D 20 feet 30 degrees 15 feet x feet woman

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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.