E16 inches H 20 inches SALE! 12 inches 4 inches 20 inches What is the area of the sign? A. 312 inches2 B. 336 inches? C. 384 inches² D. 400 inches?
E16 inches H 20 inches SALE! 12 inches 4 inches 20 inches What is the area of the sign? A. 312 inches2 B. 336 inches? C. 384 inches² D. 400 inches?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter10: Measurement, Area, And Volume
Section10.5: Surface Areas Of Prisms And Cylinders
Problem 19E
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Question
![### Geometry Word Problem: Area of a Store Sign
#### Problem Description
A store places the sign shown below in their window to attract customers. The sign is an irregular octagon with specified dimensions.
#### Diagram Explanation
- The sign has a top and bottom width of 16 inches.
- The height through the middle of the central rectangle is 12 inches.
- The height of each trapezoidal section on the top and bottom is 4 inches.
- The total width at the widest part of the sign, which includes the entire horizontal span of the trapezoidal sections, is 20 inches.
#### Question
What is the area of the sign?
#### Multiple Choice Answers
A. 312 inches²
B. 336 inches²
C. 384 inches²
D. 400 inches²
The sign can be broken down into three shapes: a rectangle and two trapezoids.
- **Rectangle:**
- Width = 16 inches
- Height = 12 inches
- Area = \(16 \text{ inches} \times 12 \text{ inches} = 192 \text{ inches}^2\)
- **Trapezoids:**
- Top base = 16 inches
- Bottom base = 20 inches
- Height = 4 inches
- The area of one trapezoid can be found using the formula for the area of a trapezoid: \( \text{Area} = \frac{1}{2} \times (\text{Base}_1 + \text{Base}_2) \times \text{Height} \)
- Area of one trapezoid = \( \frac{1}{2} \times (16 \text{ inches} + 20 \text{ inches}) \times 4 \text{ inches} = \frac{1}{2} \times 36 \text{ inches} \times 4 \text{ inches} = 72 \text{ inches}^2\)
- Since there are two trapezoids: Total area of trapezoids = \(2 \times 72 \text{ inches}^2 = 144 \text{ inches}^2\)
- **Total Area of the Sign:**
- Area of rectangle + Area of trapezoids = 192 inches² + 144 inches² = 336 inches²
Thus, the](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7acfa03c-ce8c-4cd5-a52f-d1ef747591d8%2Ff19aaee4-951a-42cf-a921-6a9d5ff3b05f%2F3zzyma_processed.png&w=3840&q=75)
Transcribed Image Text:### Geometry Word Problem: Area of a Store Sign
#### Problem Description
A store places the sign shown below in their window to attract customers. The sign is an irregular octagon with specified dimensions.
#### Diagram Explanation
- The sign has a top and bottom width of 16 inches.
- The height through the middle of the central rectangle is 12 inches.
- The height of each trapezoidal section on the top and bottom is 4 inches.
- The total width at the widest part of the sign, which includes the entire horizontal span of the trapezoidal sections, is 20 inches.
#### Question
What is the area of the sign?
#### Multiple Choice Answers
A. 312 inches²
B. 336 inches²
C. 384 inches²
D. 400 inches²
The sign can be broken down into three shapes: a rectangle and two trapezoids.
- **Rectangle:**
- Width = 16 inches
- Height = 12 inches
- Area = \(16 \text{ inches} \times 12 \text{ inches} = 192 \text{ inches}^2\)
- **Trapezoids:**
- Top base = 16 inches
- Bottom base = 20 inches
- Height = 4 inches
- The area of one trapezoid can be found using the formula for the area of a trapezoid: \( \text{Area} = \frac{1}{2} \times (\text{Base}_1 + \text{Base}_2) \times \text{Height} \)
- Area of one trapezoid = \( \frac{1}{2} \times (16 \text{ inches} + 20 \text{ inches}) \times 4 \text{ inches} = \frac{1}{2} \times 36 \text{ inches} \times 4 \text{ inches} = 72 \text{ inches}^2\)
- Since there are two trapezoids: Total area of trapezoids = \(2 \times 72 \text{ inches}^2 = 144 \text{ inches}^2\)
- **Total Area of the Sign:**
- Area of rectangle + Area of trapezoids = 192 inches² + 144 inches² = 336 inches²
Thus, the
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