An observer is on the Calgary Tower Observation Deck, 157.5 m above the ground. She estimates the angle of depression to a nearby building as 45°. The building is 81 m away from the Calgary Tower. How tall is the building?
An observer is on the Calgary Tower Observation Deck, 157.5 m above the ground. She estimates the angle of depression to a nearby building as 45°. The building is 81 m away from the Calgary Tower. How tall is the building?
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
Transcribed Image Text:An observer is on the Calgary Tower Observation Deck,
157.5 m above the ground. She estimates the angle of
depression to a nearby building as 45°. The building is 81 m
away from the Calgary Tower. How tall is the building?
45
81 m
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