A 12-foot ladder that is leaning against a wall makes a 75.5° angle with the level ground. Which of the following equations can be used to determine the height, y, above the ground, in feet, that the ladder touches the wall? Y A sin 75.5 12 %3D 12 B sin 75.5 Y %3D Y cos 75.5 = 12 C %3D 12 D cos 75.5 Y 5.

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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.