Krista H.
asked • 01/06/23trigonometry help with one question
A 132-foot antenna is on top of a tall building. From a point on the ground, the angle of elevation to the top of the antenna is 28.5°, while the angle of elevation to the bottom of the antenna from the same point is 21.5°. How tall is the building?
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3 Answers By Expert Tutors
Yefim S. answered • 01/06/23
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(h + 132)/tan28.5° = h/tan21.5°; h(1/tan21.5° - 1/tan28.5°) = 132/tan28.5°; h = 132/(tan28.5°/tan21.5° - 1) =
348.86 foot
Richard C. answered • 01/06/23
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Confidence-building Trigonometry tutor with 18 years experience
Chikae Y. answered • 01/06/23
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IB Math Tutor for IB AAHL & SL, AI SL, Experienced High School Teacher
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