Question Two hikers start from the common point B and each heads in a different direction according to the angle shown in the figure. If one hiker camps at point A 520 yards from point B and the other hiker camps at point C 418 yards from point B, what is the distance, to the nearest yard, between the two camps? 418 111° A 520 В

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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**Question**

Two hikers start from the common point \( B \) and each heads in a different direction according to the angle shown in the figure. If one hiker camps at point \( A \), 520 yards from point \( B \), and the other hiker camps at point \( C \), 418 yards from point \( B \), what is the distance, to the nearest yard, between the two camps?

**Diagram Explanation**

The diagram illustrates a triangle \( \triangle ABC \) with the following details:

- Point \( B \) is the common starting point for both hikers.
- Line segment \( AB \) is 520 yards.
- Line segment \( BC \) is 418 yards.
- The angle \( \angle ABC \) is 111°.

You need to find the length of line segment \( AC \), which is the distance between the two camps. 

To solve this, you can use the Law of Cosines:

\[ AC^2 = AB^2 + BC^2 - 2 \times AB \times BC \times \cos(\angle ABC) \]

Substitute the given values into the equation:

\[ AC^2 = 520^2 + 418^2 - 2 \times 520 \times 418 \times \cos(111°) \]

Calculate \( AC \) and round to the nearest yard.
Transcribed Image Text:**Question** Two hikers start from the common point \( B \) and each heads in a different direction according to the angle shown in the figure. If one hiker camps at point \( A \), 520 yards from point \( B \), and the other hiker camps at point \( C \), 418 yards from point \( B \), what is the distance, to the nearest yard, between the two camps? **Diagram Explanation** The diagram illustrates a triangle \( \triangle ABC \) with the following details: - Point \( B \) is the common starting point for both hikers. - Line segment \( AB \) is 520 yards. - Line segment \( BC \) is 418 yards. - The angle \( \angle ABC \) is 111°. You need to find the length of line segment \( AC \), which is the distance between the two camps. To solve this, you can use the Law of Cosines: \[ AC^2 = AB^2 + BC^2 - 2 \times AB \times BC \times \cos(\angle ABC) \] Substitute the given values into the equation: \[ AC^2 = 520^2 + 418^2 - 2 \times 520 \times 418 \times \cos(111°) \] Calculate \( AC \) and round to the nearest yard.
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