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Question 4 (Essay Worth 10 points)
(05.04 MC)
An observer (O) is located 900 feet from a building (B). The observer notices a helicopter (H) flying at a 49° angle of elevation from his line of sight. How high is the helicopter flying over the
building? You must show all work and calculations to receive full credit.
900 feet
AS
BI
30
C

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