Scale Factor Harper

Sheena made a scale drawing of her classroom using a scale of 1 inch = 10 feet. One wall of the classroom in the drawing is 4 inches long. Which proportion can be used to find x, the length of the actual wall, in feet?

• 1/10 = 4/x

• 1/x = 4/10

• 4/x = 1/10

• 12/x = 10/1

Tags

CCSS.7.RP.A.2C

Lexie is making a scale drawing of a soccer field that is 120 yards long and 80 yards wide. If the field in Lexie's drawing is 30 centimeters wide, how long should the field be in the drawing?

• A. 20 cm

• B. 45 cm

• C. 70 cm

• D. 320 cm

Tags

CCSS.7.G.A.1

Reggie was looking at a map of his school. The scale showed that 1 inch = 150 feet. If the distance between his classroom and the cafeteria measures 12 inches on the map, what is the actual distance?

• A. 1000 feet

• B. 1200 feet

• C. 1500 feet

• D. 1800 feet

Tags

CCSS.7.G.A.1

Hanna is building a fence. She will use the house for one side of the fence as shown in the scale drawing below. If the scale of the drawing is 1 cm = 8 ft, how many feet of fencing will Hanna need?

• 100 ft

• 120 ft

• 144 ft

• 154 ft

Tags

CCSS.7.G.A.1

Irvin made a scale drawing of the fence he is building. He used a scale of 1 cm = 5 feet. What is the perimeter of the actual fence Irvin is building?

• 108 feet

• 130 feet

• 169 feet

• 191 feet

Tags

CCSS.7.G.A.1

Elaine drew the model below of her room and bed. The scale of the model is 1 in. = 2 ft. What is the approximate area of her actual bed?

• 7 ft²

• 14 ft²

• 24 ft²

• 28 ft²

Tags

CCSS.7.G.A.1

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

Tags

CCSS.8.G.A.3

If the scale factor is greater than one, the new figure will be

• reduction

• enlargement

• scale

• not proportional

Tags

CCSS.8.G.A.3

The distance between two cities on a map is 4.125 inches.  Find the actual distance if the scale on the map is 2 inches = 40 miles.

• 165 miles

• 50 miles

• 82.5 miles

• 41.25 miles

Tags

CCSS.6.RP.A.3B

Robbie made a scale drawing of a neighborhood park. A soccer field in the park is 14 inches long in the drawing. The actual field is 98 yards long. What is the scale of the drawing? 1 inch = _ yards

• 1372

• 5

• 14

• 7

Tags

CCSS.7.G.A.1