Unit 1 Review Part 2

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

Find missing side

• 5

• 7

• 9

• 11

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75

• 9.75

• 10

• 12

• 0.25

• 0.5

• 2

• 1/2

What is the scale factor?

• 1

• 2

• 3

• 4

Which of the following are scaled copies of the original portrait? Select ALL the apply.

• A

• B

• C

• D

• E

Is Figure B a scaled copy of Figure A?

• Yes

• No

Is Figure B a scaled copy of Figure A?

• Yes

• No

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