Scale Factor from A to B

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

• 21

• 1.25

• 20

• 4

What is the scale factor from ABCD to MNOP?

• 2/3

• 3/2

• 2

• 3

What is the scale factor from ABC to DEF?

• 2

• 3/2

• 2/3

• 1/2

If you want to find the scale factor from one figure to another, which formula should you use?

• Copy/Original

• Model/Actual

• Both

A scale drawing that measures 8 units wide and an original that measures 4 units wide has a scale factor of...

• 2:1

• 8:1

• bigger

• 1:2

Find missing side

• 5

• 7

• 9

• 11

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

If the scale factor is 4, what is the measurement of x?

• 20 m

• 24 m

• 16 m

• 4 m

Is Figure B a scaled copy of Figure A?

• Yes

• No

If the scale factor is less than one, the copy is...

• bigger

• smaller

• the same