Answered: A walkway with a length of 18 meters…

A walkway with a length of 18 meters connects the ground and the entryway of a building. If the walkway makes angle of 55° with the ground, how high is the entryway?

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter1: Vectors

Section1.4: Applications

Problem 14EQ

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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.

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A walkway with a length of 18 meters connects the ground and the entryway of a building. If the walkway
makes angle of 55° with the ground, how high is the entryway?

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