Shore Riv xft 50 ft SA 30 ft 80 ft

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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Find the distance represented by x

### River Crossing Problem

In this diagram, we analyze a typical river crossing scenario where the objective is to calculate certain dimensions involved.

#### Description of Diagram

- **Shore**: There are two shorelines on either side of the river.
- **River**: This is the body of water flowing between the two shores.
- **x ft**: This is the distance along the shore on the right-hand side of the river, which needs to be determined.
- **80 ft**: This is the horizontal span across the river and part of the adjacent shorelines.
- **50 ft**: This distance is from a point on the shore to another point on the river.
- **30 ft**: This is the vertical distance from one shore down to a point that intersects the river.

#### Triangle Relationships

The central focus is on the right-angled triangles formed by intersecting lines along the river shores:
- A right triangle is formed by the vertical distance of 30 ft, the horizontal span of 80 ft, and a hypotenuse which constitutes the river crossing solution.

To solve for the unknown \(x\), you can use the Pythagorean theorem, or trigonometric principles depending on the exact problem constraints provided.

### Educational Objectives

- Understanding real-world applications of the Pythagorean theorem.
- Solving for unknown distances in geometric shapes.
- Applying theorems and formulas to practical scenarios.

This type of problem helps reinforce fundamental concepts in geometry and trigonometry through practical application.
Transcribed Image Text:### River Crossing Problem In this diagram, we analyze a typical river crossing scenario where the objective is to calculate certain dimensions involved. #### Description of Diagram - **Shore**: There are two shorelines on either side of the river. - **River**: This is the body of water flowing between the two shores. - **x ft**: This is the distance along the shore on the right-hand side of the river, which needs to be determined. - **80 ft**: This is the horizontal span across the river and part of the adjacent shorelines. - **50 ft**: This distance is from a point on the shore to another point on the river. - **30 ft**: This is the vertical distance from one shore down to a point that intersects the river. #### Triangle Relationships The central focus is on the right-angled triangles formed by intersecting lines along the river shores: - A right triangle is formed by the vertical distance of 30 ft, the horizontal span of 80 ft, and a hypotenuse which constitutes the river crossing solution. To solve for the unknown \(x\), you can use the Pythagorean theorem, or trigonometric principles depending on the exact problem constraints provided. ### Educational Objectives - Understanding real-world applications of the Pythagorean theorem. - Solving for unknown distances in geometric shapes. - Applying theorems and formulas to practical scenarios. This type of problem helps reinforce fundamental concepts in geometry and trigonometry through practical application.
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