Scale Factor and Perimeter

If the perimeter of a rectangle was 20in and now it is is 80in, what is the scale factor that was used?

• 4

• 2

• 40

• 20

Alan drew a scale drawing of a house and its lot. The scale he used was 1 millimeter : 5 meters. In the drawing, the lawn in the backyard is 10 millimeters long. What is the length of the actual lawn?

• 50 m

• 2 m

• 10 m

• 5 m

Kenny drew a scale drawing of a swimming pool. The scale of the drawing was 2 centimeters : 1 meter. If the pool is 26 centimeters in the drawing, how wide is the actual pool?

• 13 m

• 2 m

• 1 m

• 52 m

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

Line BC corresponds with what line? 

• XZ

• XY

• YZ

• YX

Jill's room is 12.5 feet long and 11.5 feet wide. She made a scale drawing of the room with a scale of 0.5 inch= 2 feet.  What is the PERIMETER of Jill's room in the drawing described?

• 12 inches

• 24 inches

• 48 inches

• 96 inches 

A scale factor greater than one creates ....

• a reduction

• an enlargement

• an exact copy

• none of these

The scale drawing car length is 3 cm. If the scale is 1 cm:4 ft, what is the actual car length?

• 12 feet

• 16 feet 

• 10 feet

• 4 feet

If a Scale Factor if greater than 1, then your figure gets...

• Smaller

• Bigger

• Does not change

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