5. You are measuring the distance across a small lake. You had to set up your transit on one side of the lake 80 feet from a piling that is directly across from a pier on the other side of the lake. From your transit, the angle between the piling and the pier is 30°. What is the distance between the piling and the pier? C=180

5. You are measuring the distance across a small lake. You had to set up your transit on one side of the lake 80 feet from a piling that is directly across from a pier on the other side of the lake. From your transit, the angle between the piling and the pier is 30°. What is the distance between the piling and the pier? C=180

Trigonometry (11th Edition)

11th Edition

ISBN:9780134217437

Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels

Chapter1: Trigonometric Functions

Section: Chapter Questions

Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.

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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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5. You are measuring the distance across a small lake. You had to set up your transit on one
side of the lake 80 feet from a piling that is directly across from a pier on the other side of
the lake. From your transit, the angle between the piling and the pier is 30°. What is the
distance between the piling and the pier?
C=180-30-

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