A lamppost, CAB, bent at point A after a storm. The tip of the lamppost touched the ground at point C, as shown below.B20 feetWhat is the height, in feet, of the portion AB of the lamppost?20tan55O 20 cos 55°20 tan 55°20cos 55

A lamppost, CAB, bent at point A after a storm. The tip of the lamppost touched the ground at point C, as shown below:. 20 feet What is the height, in feet, of the portion AB of the lamppost? 20 tan55° 20 cos 55° 20 tan 55° 20 cos 55

A lamppost, CAB, bent at point A after a storm. The tip of the lamppost touched the ground at point C, as shown below:. 20 feet What is the height, in feet, of the portion AB of the lamppost? 20 tan55° 20 cos 55° 20 tan 55° 20 cos 55

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter6: The Trigonometric Functions

Section6.7: Applied Problems

Problem 29E

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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

A lamppost, CAB, bent at point A after a storm. The tip of the lamppost touched the ground at point C, as shown below.
B
20 feet
What is the height, in feet, of the portion AB of the lamppost?
20
tan55
O 20 cos 55°
20 tan 55°
20
cos 55

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