The angle of elevation of the tower from A is 25°. From another point B, the angle of elevation of the tower is 56°. AB=300m and on the same horizontal plane as the foot of the tower. The horizontal angle subtended by A and B at the foot of the tower is 70°. How far is point A from the tower? How far is point B from the tower?

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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The angle of elevation of the tower from A is 25°.
From another point B, the angle of elevation of the tower is
56°. AB=300m and on the same horizontal plane as the foot of
the tower. The horizontal angle subtended by A and B at the
foot of the tower is 70°.

How far is point A from the tower?

How far is point B from the tower?

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