Exploring Scale Drawings and Models

What is the purpose of using scale factors in model construction?

• To increase the size of the model

• To maintain proportional relationships

• To reduce the cost of materials

• To ensure models are not proportional

Tags

CCSS.7.G.A.1

If 4 inches represent 20 feet, what is the scale factor?

• 1 inch to 6 feet

• 1 inch to 4 feet

• 1 inch to 5 feet

• 1 inch to 3 feet

Tags

CCSS.7.G.A.1

What is the first step in finding a scale factor for a model?

• Add the model size to the actual size

• Multiply the model size by the actual size

• Subtract the model size from the actual size

• Divide the model size by the actual size

Tags

CCSS.7.G.A.1

How do you simplify the scale factor 11/132?

• 1/11

• 1/12

• 1/10

• 1/13

What does a scale factor of 1 inch to 12 inches indicate?

• The model is 12 times smaller than the actual size

• The model is 12 times larger than the actual size

• The model and actual size are the same

• The model is half the size of the actual

Tags

CCSS.7.G.A.1

If a model car is 11 inches long and the actual car is 132 inches, what is the simplified scale factor?

• 1 to 12

• 1 to 11

• 1 to 10

• 1 to 13

Tags

CCSS.7.G.A.1

What is the actual height of the painting if the photo height is 5.4 cm and the scale factor is 1 to 15?

• 60 cm

• 81 cm

• 75 cm

• 90 cm

Tags

CCSS.7.G.A.1

How do you calculate the width of an object if the scale factor is 1 to 15 and the model width is 4 cm?

• 60 cm

• 45 cm

• 30 cm

• 15 cm

Tags

CCSS.7.G.A.1

What is the actual distance between Hala and Tampa if the map shows 10.5 cm and the scale is 3 cm to 128 km?

• 375 km

• 448 km

• 528 km

• 500 km

Tags

CCSS.7.G.A.1

In the context of maps, what does a scale of 3 cm to 128 km help determine?

• The color of the map

• The material of the map

• The age of the map

• The actual distance represented by the map