figure below is a diagram that shows how Colleen estimates the height of a tree that is on the other side of a stream. She stands at point A facing the tree levation from A to the top of the tree to be 57°. Then she turns 105° and walks 25 feet to point B, where she measures the angle between her path AB and ending from her to the base of the tree. She finds that angle to be 42°. Use this information to find the height of the tree. (Round your answer to the neares

figure below is a diagram that shows how Colleen estimates the height of a tree that is on the other side of a stream. She stands at point A facing the tree levation from A to the top of the tree to be 57°. Then she turns 105° and walks 25 feet to point B, where she measures the angle between her path AB and ending from her to the base of the tree. She finds that angle to be 42°. Use this information to find the height of the tree. (Round your answer to the neares

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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figure below is a diagram that shows how Colleen estimates the height of a tree that is on the other side of a stream. She stands at point A facing the tree
levation from A to the top of the tree to be 57°. Then she turns 105° and walks 25 feet to point B, where she measures the angle between her path AB and
ending from her to the base of the tree. She finds that angle to be 42°. Use this information to find the height of the tree. (Round your answer to the neares

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