8.1 Scale Factors

A map has a scale of 1:100,000. If a road is 3 km long in real life, how long is it on the map?

• 3 cm

• 30 cm

• 300 cm

• 3 m

Tags

CCSS.7.G.A.1

A model car is made at a scale of 1:24. If the actual car is 4.8 meters long, how long is the model car?

• 20 cm

• 200 cm

• 20 m

• 2 m

Tags

CCSS.7.G.A.1

A photograph is enlarged to twice its original width and height. What is the scale factor of the enlargement?

• 1

• 2

• 4

• 0.5

Tags

CCSS.7.G.A.1

A blueprint has a scale factor of 1:50. If a wall in the blueprint is 5 inches long, how long is the actual wall?

• 250 inches

• 25 feet

• 250 feet

• 25 inches

Tags

CCSS.7.G.A.1

A scale model of a skyscraper is made using a scale factor of 1:500. If the model is 120 cm tall, how tall is the actual skyscraper?

• 60 m

• 600 m

• 6,000 m

• 60,000 m

Tags

CCSS.7.G.A.1

A rectangular garden measuring 50 m by 30 m is represented on a plan with a scale factor of 1:200. What are the dimensions of the garden on the plan?

• 25 cm by 15 cm

• 250 cm by 150 cm

• 2.5 cm by 1.5 cm

• 0.25 cm by 0.15 cm

Tags

CCSS.7.G.A.1

A dollhouse is a scale model of a real house, with a scale factor of 1:12. If a window in the real house is 3 feet wide, how wide is the corresponding window in the dollhouse?

• 3 inches

• 6 inches

• 12 inches

• 36 inches

Tags

CCSS.7.G.A.1

A child's toy is made at a scale of 1:16. If the toy is 2.5 inches tall, how tall is the original object in feet?

• 3.33 feet

• 40 feet

• 4 feet

• 0.208 feet

Tags

CCSS.7.G.A.1

A piece of artwork is reduced in size to fit on a postcard, using a scale factor of 1:8. If the original artwork was 32 inches wide, how wide is the image on the postcard?

• 4 inches

• 8 inches

• 16 inches

• 2 inches

Tags

CCSS.7.G.A.1

A construction company uses a scale factor of 1:100 to create a model of a new building. If the model's elevator shaft is 1.8 inches wide, how wide is the actual elevator shaft?

• 18 inches

• 180 inches

• 15 feet

• 180 feet

Tags

CCSS.7.G.A.1