The diagram below is a scale drawing of a building and the parking lot outside it. A scale factor of 1 cm = 6 ft was used to make the drawing. - 22.5 cm 4.5 cm Parking Lot Scale 16.5 cm 1 cm = 6 ft Building 12.0 cm 12.0 cm What is the area of the parking lot?

Algebra and Trigonometry (6th Edition)
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ChapterP: Prerequisites: Fundamental Concepts Of Algebra
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### Calculating the Area of a Parking Lot

The diagram below represents a scale drawing of a building and the adjacent parking lot. The scale used for this drawing is 1 cm = 6 ft.

![Diagram](scale-drawing.png)

#### Dimensions:
- **Parking Lot:**
  - Width: 22.5 cm
  - Height: 16.5 cm
  
- **Building:**
  - Width: 12.0 cm
  - Height: 12.0 cm
  
#### Scale:
1 cm = 6 ft

#### Question:
What is the area of the parking lot?

#### Step-by-Step Solution:

1. **Convert the dimensions from cm to ft using the given scale:**
   - For the parking lot:
     - Width = 22.5 cm × 6 ft/cm = 135 ft
     - Height = 16.5 cm × 6 ft/cm = 99 ft
   - For the building:
     - Width = 12.0 cm × 6 ft/cm = 72 ft
     - Height = 12.0 cm × 6 ft/cm = 72 ft

2. **Calculate the area using the dimensions in feet:**
   - Area of the parking lot \( = \text{Width} \times \text{Height} = 135 \, \text{ft} \times 99 \, \text{ft} = 13,365 \, \text{ft}^2 \)
   - Area of the building \( = \text{Width} \times \text{Height} = 72 \, \text{ft} \times 72 \, \text{ft} = 5,184 \, \text{ft}^2 \)

3. **Subtract the area of the building from the total area of the parking lot:**
   - Area of the parking lot (excluding the building) \( = 13,365 \, \text{ft}^2 - 5,184 \, \text{ft}^2 = 8,181 \, \text{ft}^2 \)

#### Answer:
The area of the parking lot is **8,181.0 ft²**.

##### Additional Explanation of the Diagram:
- A large rectangle represents the parking lot.
- A smaller, inner rectangle represents the building.
- Dimensions are clearly marked, and the scale is provided for conversion.
Transcribed Image Text:### Calculating the Area of a Parking Lot The diagram below represents a scale drawing of a building and the adjacent parking lot. The scale used for this drawing is 1 cm = 6 ft. ![Diagram](scale-drawing.png) #### Dimensions: - **Parking Lot:** - Width: 22.5 cm - Height: 16.5 cm - **Building:** - Width: 12.0 cm - Height: 12.0 cm #### Scale: 1 cm = 6 ft #### Question: What is the area of the parking lot? #### Step-by-Step Solution: 1. **Convert the dimensions from cm to ft using the given scale:** - For the parking lot: - Width = 22.5 cm × 6 ft/cm = 135 ft - Height = 16.5 cm × 6 ft/cm = 99 ft - For the building: - Width = 12.0 cm × 6 ft/cm = 72 ft - Height = 12.0 cm × 6 ft/cm = 72 ft 2. **Calculate the area using the dimensions in feet:** - Area of the parking lot \( = \text{Width} \times \text{Height} = 135 \, \text{ft} \times 99 \, \text{ft} = 13,365 \, \text{ft}^2 \) - Area of the building \( = \text{Width} \times \text{Height} = 72 \, \text{ft} \times 72 \, \text{ft} = 5,184 \, \text{ft}^2 \) 3. **Subtract the area of the building from the total area of the parking lot:** - Area of the parking lot (excluding the building) \( = 13,365 \, \text{ft}^2 - 5,184 \, \text{ft}^2 = 8,181 \, \text{ft}^2 \) #### Answer: The area of the parking lot is **8,181.0 ft²**. ##### Additional Explanation of the Diagram: - A large rectangle represents the parking lot. - A smaller, inner rectangle represents the building. - Dimensions are clearly marked, and the scale is provided for conversion.
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