10. You are standing on top of a small building that is 12m high. The angle of elevation to the top of the larger building is 38°. The angle of depression to the bottom of the larger building is 30°. How tall is the larger building?

10. You are standing on top of a small building that is 12m high. The angle of elevation to the top of the larger building is 38°. The angle of depression to the bottom of the larger building is 30°. How tall is the larger building?

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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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.

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10. You are standing on top of a small building that is 12m high. The angle of elevation to the top of the larger building is 38°. The
angle of depression to the bottom of the larger building is 30°. How tall is the larger building?

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