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Anthony wished to find the width of a river. He observed a tree directly across the river on the opposite bank. The angle of elevation to the top of the tree was 30°. Then Anthony moved directly back from the bank 60 meters and found that the angle of elevation to the top of the tree was 25°. What is the width of the river?

Anthony wished to find the width of a river. He observed a tree directly across the river on the opposite bank. The angle of elevation to the top of the tree was 30°. Then Anthony moved directly back from the bank 60 meters and found that the angle of elevation to the top of the tree was 25°. What is the width of the river?

Trigonometry (11th Edition)
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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credits, box the final answer: 1. Anthony wished to find the width of a river. He observed a tree directly across the river on the opposite bank. The angle of elevation to the top of the tree was 30°. Then Anthony moved directly back from the bank 60 meters and found that the angle of elevation to the top of the tree was 25°. What is the width of the river?
Transcribed Image Text:credits, box the final answer: 1. Anthony wished to find the width of a river. He observed a tree directly across the river on the opposite bank. The angle of elevation to the top of the tree was 30°. Then Anthony moved directly back from the bank 60 meters and found that the angle of elevation to the top of the tree was 25°. What is the width of the river?
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