2. From an angle of depression of 40°, John watches his friend approach hisbuilding while standing on the rooftop. The rooftop is 16 m from the ground,and John's eye level is about 1.8 m from the rooftop. What is the distancebetween John's friend and the building?

Answered: Image /qna-images/answer/42529a38-d312-41e2-a1dc-74bc02ddd960.jpg

2. From an angle of depression of 40°, John watches his friend approach his building while standing on the rooftop. The rooftop is 16 m from the graund, and John's eye level is about 1.8 m from the rooftop. What is the distance between John's friend and the building?

2. From an angle of depression of 40°, John watches his friend approach his building while standing on the rooftop. The rooftop is 16 m from the graund, and John's eye level is about 1.8 m from the rooftop. What is the distance between John's friend and the building?

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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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

2. From an angle of depression of 40°, John watches his friend approach his
building while standing on the rooftop. The rooftop is 16 m from the ground,
and John's eye level is about 1.8 m from the rooftop. What is the distance
between John's friend and the building?

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