10. From a window 30 feet above the street, the angle of elevation to the top of the building across the street is 50.0° and the angle of depression to the base of the building is 20°. What is the height of the building across the street? 82.4 feet 112.4 feet 98.2 feet 128.2 feet

10. From a window 30 feet above the street, the angle of elevation to the top of the building across the street is 50.0° and the angle of depression to the base of the building is 20°. What is the height of the building across the street? 82.4 feet 112.4 feet 98.2 feet 128.2 feet

Trigonometry (MindTap Course List)

8th Edition

ISBN:9781305652224

Author:Charles P. McKeague, Mark D. Turner

Publisher:Charles P. McKeague, Mark D. Turner

Chapter7: Triangles

Section7.1: The Law Of Sines

Problem 52PS: Gina is standing near a building and notices that the angle of elevation to the top of the building...

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Concept explainers

Ratios

A ratio is a comparison between two numbers of the same kind. It represents how many times one number contains another. It also represents how small or large one number is compared to the other.

Trigonometric Ratios

Trigonometric ratios give values of trigonometric functions. It always deals with triangles that have one angle measuring 90 degrees. These triangles are right-angled. We take the ratio of sides of these triangles.

Question

2p
10.
From a window 30 feet above the street, the angle of elevation to the top of the building across
the street is 50.0° and the angle of depression to the base of the building is 20°. What is the
height of the building across the street?
82.4 feet
112.4 feet
98.2 feet
2p
128.2 feet
ASUS

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