# 4 a) A six-foot tall woman is standing 10 feet away from a light pole that is 15 feet tall. How long is the woman's shadow? HINT: Draw a picture. Write two expressions using the same trigonometric function, then, since they represent the same trigonometric function, set them equal and solve. b) A wire is attached to a 200-foot tall antenna. If the angle of elevation from the point on the ground to the top of the antenna is 30°, then how long is the wire? 200 30

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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.