11. A person on the ground is directly between two helicopters that are flying toward each other at the same altitude. The first helicopter is 2.0 km away from the observer, at an angle of elevation of 30°, while the second helicopter is 3.5 km away. Round answers to the nearest tenth of a kilometre, if necessary. a) Draw a diagram and label the known information. b) How far apart are the helicopters? c) What is their altitude?

11. A person on the ground is directly between two helicopters that are flying toward each other at the same altitude. The first helicopter is 2.0 km away from the observer, at an angle of elevation of 30°, while the second helicopter is 3.5 km away. Round answers to the nearest tenth of a kilometre, if necessary. a) Draw a diagram and label the known information. b) How far apart are the helicopters? c) What is their altitude?

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

11. A person on the ground is directly
between two helicopters that are flying
toward each other at the same altitude.
The first helicopter is 2.0 km away from
the observer, at an angle of elevation of
30°, while the second helicopter is
3.5 km away. Round answers to the nearest
tenth of a kilometre, if necessary.
a) Draw a diagram and label the known
information.
b) How far apart are the helicopters?
c) What is their altitude?

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