R 570 S 15 T.

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
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### Geometry Problem: Right Triangle Analysis

Given the right triangle \( \triangle RST \):

- The measure of angle \( \angle R \) is \( 57^\circ \).
- The length of side \( ST \) is \( 15 \) units.
- \( \angle S \) is a right angle (\( 90^\circ \)).

To solve the following:

**1. Calculate the approximate lengths of \( RS \) and \( RT \).**
**2. Find the measure of \( \angle T \).**

Fill in the blanks:

\[ RS \approx \_\_\_ , RT \approx \_\_\_ , m \angle T = \_\_\_ ^\circ \]

### Diagram Description

The diagram displays a right triangle \( \triangle RST \) with:
- \( R \) at the top vertex,
- \( S \) at the bottom left vertex,
- \( T \) at the bottom right vertex.

\( \angle S \) is marked as a right angle. \( ST \) is labeled with a length of \( 15 \) units and \( \angle R \) is labeled with a measure of \( 57^\circ \).

### Instructions
1. Use trigonometric principles (sine, cosine, and tangent) and the Pythagorean theorem to determine the lengths of the sides \( RS \) and \( RT \).
2. Using the fact that the sum of angles in a triangle is \( 180^\circ \), calculate \( \angle T \).

**Answers should be approximations to one or two decimal places where applicable.**

**Interactive Elements:**
- **Check:** Verify your answers.
- **Help:** Get hints and guidance to solve the problem.
- **Next/Prev:** Navigate between the different problems.

#### Notes
- You can use a scientific calculator to find the sine, cosine, or tangent values.
- Ensure you understand the relationship between the angles and sides in trigonometry to solve such problems effectively.
Transcribed Image Text:### Geometry Problem: Right Triangle Analysis Given the right triangle \( \triangle RST \): - The measure of angle \( \angle R \) is \( 57^\circ \). - The length of side \( ST \) is \( 15 \) units. - \( \angle S \) is a right angle (\( 90^\circ \)). To solve the following: **1. Calculate the approximate lengths of \( RS \) and \( RT \).** **2. Find the measure of \( \angle T \).** Fill in the blanks: \[ RS \approx \_\_\_ , RT \approx \_\_\_ , m \angle T = \_\_\_ ^\circ \] ### Diagram Description The diagram displays a right triangle \( \triangle RST \) with: - \( R \) at the top vertex, - \( S \) at the bottom left vertex, - \( T \) at the bottom right vertex. \( \angle S \) is marked as a right angle. \( ST \) is labeled with a length of \( 15 \) units and \( \angle R \) is labeled with a measure of \( 57^\circ \). ### Instructions 1. Use trigonometric principles (sine, cosine, and tangent) and the Pythagorean theorem to determine the lengths of the sides \( RS \) and \( RT \). 2. Using the fact that the sum of angles in a triangle is \( 180^\circ \), calculate \( \angle T \). **Answers should be approximations to one or two decimal places where applicable.** **Interactive Elements:** - **Check:** Verify your answers. - **Help:** Get hints and guidance to solve the problem. - **Next/Prev:** Navigate between the different problems. #### Notes - You can use a scientific calculator to find the sine, cosine, or tangent values. - Ensure you understand the relationship between the angles and sides in trigonometry to solve such problems effectively.
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