Sarah measured her height and she was 4.5 feet tall. Sarah measured her shadow and it was 9 feet long. Sarah measured the trees shadow and it was 90 feet long. What is the angle of the sun above the horizon? How tall is the tree?

Sarah measured her height and she was 4.5 feet tall. Sarah measured her shadow and it was 9 feet long. Sarah measured the trees shadow and it was 90 feet long. What is the angle of the sun above the horizon? How tall is the tree?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter6: Ratio, Proportion, And Probability

Section6.5: Similarity And Measurement

Problem 3C

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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

Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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