Which of the following best describes the primary difference between a scale drawing and a scale model?

A scale drawing is always smaller than the real object, while a scale model is always larger.

A scale drawing is a two-dimensional representation, while a scale model is three-dimensional.

A scale drawing uses inches and feet, while a scale model uses the metric system.

A scale drawing represents buildings, while a scale model represents vehicles.

In a scale drawing, what does the 'scale' define?

The number of objects in the drawing.

The ratio of a length in the drawing to the corresponding actual length.

The color scheme used in the drawing.

Scale Drawings Practice — Grade 7 math

Lesson 5: Scale Drawings — Practice Questions

1. Which of the following best describes the primary difference between a scale drawing and a scale model?
- A. A scale drawing is always smaller than the real object, while a scale model is always larger.
- B. A scale drawing is a two-dimensional representation, while a scale model is three-dimensional.
- C. A scale drawing uses inches and feet, while a scale model uses the metric system.
- D. A scale drawing represents buildings, while a scale model represents vehicles.
2. A model car is built using a 1:24 scale. If the real car is 480 cm long, the length of the model car is ___ cm.
3. A detailed architectural blueprint for a new library is a classic example of which of the following?
- A. A scale model
- B. A scale drawing
- C. An actual dimension
- D. A three-dimensional object
4. On a map, the scale is 1 inch : 8 miles. The distance between two towns on the map is 5 inches. The actual distance between the towns is ___ miles.
5. In a scale drawing, what does the 'scale' define?
- A. The total area of the drawing.
- B. The number of objects in the drawing.
- C. The ratio of a length in the drawing to the corresponding actual length.
- D. The color scheme used in the drawing.
6. A map's scale is 1 inch = 10 miles. If the distance between two cities on the map is 6 inches, what is the actual distance in miles? ___
7. An architect's blueprint uses a scale of 1 inch = 6 feet. A room has an actual length of 21 feet. What is the length of the room on the blueprint?
- A. 3 inches
- B. 3.5 inches
- C. 4 inches
- D. 126 inches
8. A scale drawing of a garden uses a scale of 1 cm = 2.5 meters. A fence is 8 cm long on the drawing. What is the actual length of the fence in meters? ___
9. A model car is built with a scale of 1 inch = 4 feet. The actual car is 18 feet long. Which proportion correctly finds the car's length, $x$, on the model?
- A. $\frac{1}{4} = \frac{x}{18}$
- B. $\frac{1}{4} = \frac{18}{x}$
- C. $\frac{1}{x} = \frac{18}{4}$
- D. $\frac{x}{1} = \frac{4}{18}$
10. A building's blueprint has a scale of 1 inch = 8 feet. A wall is actually 36 feet long. How long is the wall on the blueprint, in inches? ___