From the top of a 45-m high building, an observer sees a car heading toward the building at an angle of depression of 15°. After some time, the angle of elevation to the car is 30°. What is the distance that the car has travelled? Express your answer to the nearest meter.

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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From the top of a 45-m high building, an observer sees a car heading toward the building at an angle of depression of 15°. After some time, the angle of elevation to the car is 30°. What is the distance that the car has travelled? Express your answer to the nearest meter.

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