Reassessment on Dilations

Dilations are ________ but not congruent.

• Similar

• Flipped

• Rotated

• Congruent

Dilations will always keep the same ________

• Orientation

• Size

• Area

• Perimeter

When you dilate, you ______ x and y by a number.

• Multiply

• Add

• Subtract

• Divide

Does the image show a dilation?

• Yes

• No

If k=1.25 (k is scale factor), then a dilation will result in a(n)______

• reduction

• enlargement

• scale factor

• center of dilation

Find the measure of x:

• 6

• 24

• 33

• 36

The __________ is the ratio of a length of the image to the corresponding length on the original figure.

• reduction

• enlargement

• scale factor

• center of dilation

In a dilation what mathematical operation is used with the scale factor?

• addition 

• subtraction 

• multiplication 

• division 

If a figure has a side length that is 12 units long and is dilated such that the side length of the image is 24 units long, what is the scale factor?

• 1/2

• 12

• 2

• 6

Dilations only enlarge figures.

• True

• False