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.
Shooting Free Throws in Basketball The eyes of a basketball
player are 6 feet above the floor. The player is at the
free-throw line, which is 15 feet from the center of the basket
rim (see the figure). What is the angle of elevation from the
player’s eyes to the center of the rim?
[Hint: The rim is 10 feet above the floor.]
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