Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter9: Surfaces And Solids
Section9.4: Polyhedrons And Spheres
Problem 23E: The surface of a soccer ball is composed of 12 regular pentagons and 20 regular hexagons. With each...
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![**Title: Calculating the Surface Area of a Triangular Prism Using Its Net**
**Objective:**
Learn how to find the surface area of a triangular prism by analyzing its net.
**Problem Statement:**
Using the net below, find the surface area of the triangular prism.
**Diagram Description:**
The provided diagram shows the net of a triangular prism with the following dimensions:
- Two right-angled triangles with legs of 4 cm and 5 cm, and a hypotenuse of 6 cm.
- Three rectangular faces:
- Two rectangles of dimensions 8 cm by 5 cm.
- One rectangle of dimensions 8 cm by 6 cm.
**Net Dimensions:**
1. Rectangular Faces:
- Two rectangles:
- Length: 8 cm
- Width: 5 cm
- One rectangle:
- Length: 8 cm
- Width: 6 cm
2. Triangular Faces:
- Base: 6 cm
- Height: 4 cm
- Hypotenuse: 5 cm
**Steps to Calculate Surface Area:**
1. Calculate the area of the triangular faces:
- Area of one triangle = \(\frac{1}{2} \times \text{base} \times \text{height}\)
- For one triangle: \(\frac{1}{2} \times 6 \, \text{cm} \times 4 \, \text{cm}\) = 12 \( \text{cm}^2\)
- Since there are two identical triangular faces, their total area = \(2 \times 12 \text{cm}^2\) = 24 \( \text{cm}^2\)
2. Calculate the area of the rectangular faces:
- Area of each 8 cm by 5 cm rectangle = \(8 \, \text{cm} \times 5 \, \text{cm} = 40 \, \text{cm}^2\)
- There are two such rectangles, so their total area = \(2 \times 40 \, \text{cm}^2 = 80 \, \text{cm}^2\)
- Area of the 8 cm by 6 cm rectangle = \(8 \, \text{cm} \times 6 \, \text{cm} =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F53bad53d-f08e-4d13-92f8-185e790404d5%2Fec6e1847-c1fd-4fa3-8215-0048698e9ff9%2Fc5tx6w_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Title: Calculating the Surface Area of a Triangular Prism Using Its Net**
**Objective:**
Learn how to find the surface area of a triangular prism by analyzing its net.
**Problem Statement:**
Using the net below, find the surface area of the triangular prism.
**Diagram Description:**
The provided diagram shows the net of a triangular prism with the following dimensions:
- Two right-angled triangles with legs of 4 cm and 5 cm, and a hypotenuse of 6 cm.
- Three rectangular faces:
- Two rectangles of dimensions 8 cm by 5 cm.
- One rectangle of dimensions 8 cm by 6 cm.
**Net Dimensions:**
1. Rectangular Faces:
- Two rectangles:
- Length: 8 cm
- Width: 5 cm
- One rectangle:
- Length: 8 cm
- Width: 6 cm
2. Triangular Faces:
- Base: 6 cm
- Height: 4 cm
- Hypotenuse: 5 cm
**Steps to Calculate Surface Area:**
1. Calculate the area of the triangular faces:
- Area of one triangle = \(\frac{1}{2} \times \text{base} \times \text{height}\)
- For one triangle: \(\frac{1}{2} \times 6 \, \text{cm} \times 4 \, \text{cm}\) = 12 \( \text{cm}^2\)
- Since there are two identical triangular faces, their total area = \(2 \times 12 \text{cm}^2\) = 24 \( \text{cm}^2\)
2. Calculate the area of the rectangular faces:
- Area of each 8 cm by 5 cm rectangle = \(8 \, \text{cm} \times 5 \, \text{cm} = 40 \, \text{cm}^2\)
- There are two such rectangles, so their total area = \(2 \times 40 \, \text{cm}^2 = 80 \, \text{cm}^2\)
- Area of the 8 cm by 6 cm rectangle = \(8 \, \text{cm} \times 6 \, \text{cm} =
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