Trigonometry (11th Edition)
Trigonometry (11th Edition)
11th Edition
ISBN: 9780134217437
Author: Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher: PEARSON
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Concept explainers

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.
Question
For safety, in climbing a ladder against a wall, the ladder should ideally make an angle of 75° with the ground. If a ladder is 12 feet long, how far from the wall should you put the base of the ladder? Sketch and label a diagram at the left. Then put your answer in space below. Round to the nearest tenth of a foot.
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Transcribed Image Text:For safety, in climbing a ladder against a wall, the ladder should ideally make an angle of 75° with the ground. If a ladder is 12 feet long, how far from the wall should you put the base of the ladder? Sketch and label a diagram at the left. Then put your answer in space below. Round to the nearest tenth of a foot.
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