A river runs west to east. A tree stands on the edge of one bank of the river and a man standing directly opposite on the other bank of the river wishes to determine the width of the river and the height of the tree. If the man walks 7m west along the bank, the angle of elevation to the top of the tree is 17 degrees. If he walks 5 m east from the point opposite the tree, the angle of elevation to the top of the tree would be 19 degrees. Draw the diagram and determine the height of the tree and the width of the river.

A river runs west to east. A tree stands on the edge of one bank of the river and a man standing directly opposite on the other bank of the river wishes to determine the width of the river and the height of the tree. If the man walks 7m west along the bank, the angle of elevation to the top of the tree is 17 degrees. If he walks 5 m east from the point opposite the tree, the angle of elevation to the top of the tree would be 19 degrees. Draw the diagram and determine the height of the tree and the width of the river.

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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Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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