[7] Wayne needs to know the height of a tree he wishes to cut down. From a point A on level ground he finds that the angle of elevation to the top of the tree is 38.6°. He then moves back away from the tree 60 feet from point A, and from this second point, the angle of elevation to the top of the tree is 20.8°. Find the height of the tree to the nearest foot.

[7] Wayne needs to know the height of a tree he wishes to cut down. From a point A on level ground he finds that the angle of elevation to the top of the tree is 38.6°. He then moves back away from the tree 60 feet from point A, and from this second point, the angle of elevation to the top of the tree is 20.8°. Find the height of the tree to the nearest foot.

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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Question

/assighments/2966849
A = 36°
A' = 36°
B =
B’ =
C =
C =
[7] Wayne needs to know the height of a tree he wishes to cut down. From a point A on level ground
he finds that the angle of elevation to the top of the tree is 38.6°. He then moves back away from
the tree 60 feet from point A, and from this second point, the angle of elevation to the top of the tree
is 20.8°. Find the height of the tree to the nearest foot.
[8] Lookout station P is located 23 miles due west of lookout station Q. The bearing of a fire from P
is 180° and the bearing of the fire from Q is 250°. Determine the distance, to the nearest tenth of
a mile, from lookout station Q to the fire.

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