15 in. 30 in. 20 in.

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 lateral area of the prism?

in the picture.

**Understanding Geometric Shapes and Measurements**

**Diagram Description:**

The image shows a geometric diagram composed of a combination of shapes. The main figure consists of a rectangle with a triangle on top. 

**Measurements and Details:**

1. **Rectangle:**
   - Height: 30 inches.
   - Width: The width is not directly provided, but given the context it likely matches the triangle's base.

2. **Triangle:**
   - The triangle sits directly on top of the rectangle.
   - The edges are marked, but no specific height for the triangle is given.

3. **Dashed Lines:**
   - There are dashed lines within the rectangle forming two right-angled triangles at the bottom.

4. **Measurements of the Internal Triangles:**
   - Each triangle has an adjacent side measuring 15 inches.
   - The hypotenuse of these triangles is 20 inches long.

**Explanation:**

This diagram can be used to explain concepts such as:

- **Basic Geometric Shapes:** Identification of rectangles and triangles.
- **Pythagorean Theorem:** Given that the right-angled triangle sides are labeled, it allows calculation verification.
- **Measurement Reading:** Understanding how to read and interpret measurements from geometric figures.

**Practical Exercise:**

- Calculate the width of the rectangle using the measurements provided.
- Verify the length of the hypotenuse using the Pythagorean theorem: \( c = \sqrt{a^2 + b^2} \).
- Understand how geometric shapes can be combined to form complex figures.

This diagram provides a practical visual aid for learning about geometry and measurement interpretation.
Transcribed Image Text:**Understanding Geometric Shapes and Measurements** **Diagram Description:** The image shows a geometric diagram composed of a combination of shapes. The main figure consists of a rectangle with a triangle on top. **Measurements and Details:** 1. **Rectangle:** - Height: 30 inches. - Width: The width is not directly provided, but given the context it likely matches the triangle's base. 2. **Triangle:** - The triangle sits directly on top of the rectangle. - The edges are marked, but no specific height for the triangle is given. 3. **Dashed Lines:** - There are dashed lines within the rectangle forming two right-angled triangles at the bottom. 4. **Measurements of the Internal Triangles:** - Each triangle has an adjacent side measuring 15 inches. - The hypotenuse of these triangles is 20 inches long. **Explanation:** This diagram can be used to explain concepts such as: - **Basic Geometric Shapes:** Identification of rectangles and triangles. - **Pythagorean Theorem:** Given that the right-angled triangle sides are labeled, it allows calculation verification. - **Measurement Reading:** Understanding how to read and interpret measurements from geometric figures. **Practical Exercise:** - Calculate the width of the rectangle using the measurements provided. - Verify the length of the hypotenuse using the Pythagorean theorem: \( c = \sqrt{a^2 + b^2} \). - Understand how geometric shapes can be combined to form complex figures. This diagram provides a practical visual aid for learning about geometry and measurement interpretation.
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