Scale and Scale Factor

Find the scale factor of the enlargement from A to B

• 2

• 1/2

• 3

• 4

Find the scale factor of the enlargement from A to C

• 2

• 1/2

• 3

• 1/3

Pedro and his friends are visiting chocolate shops in Fairview. They take a cab from one chocolate shop to another. On a map, the two are separated by 3 centimeters. If the scale of the map is 1 centimeter = 2 kilometers, then what is the actual distance between the two chocolate shops?
____ = ____

• 1/2 kilometer 

• 1.5 kilometers

• 6 kilometers

• 3 kilometers

Triangle ABC and XYZ are similar.  Use your knowledge of scale factor to find the length of X.

• 20

• 25

• 100

• 40

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

• an enlargement

• a reduction

• a scale factor

• bigger

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

• a reduction

• an enlargement

• a scale

• not proportional

Which triangle is similar to the above triangle?

• A

• B

• C

• D

• 74
• 100
• 104
• 108

Q1. How many apples are there?

• 1) 217

• 2) 288

• 3) 295

• 4) 306

Q1. What is the result of 6 * 4?

• A) 24

• B) 16

• C) 30

• D) 50