Dilations Given a Center

What is the scale factor if the triangle on the left is the original?

• 2

• 3/2

• 2/3

• 1/2

Does the image show a dilation?

• Yes

• No

What is the scale factor if the smaller rectangle is the original rectangle?

• 4

• 25

• 5

• 6

What is the scale factor used to dilate the small square to the larger square given there areas?

• 4

• 16

• 3

• 12

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Dilations are ________ but not congruent.

• Similar

• Flipped

• Rotated

• Congruent

Dilations will always keep the same ________

• Orientation

• Size

• Area

• Perimeter

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

• reduction

• enlargement

• scale factor

• center of dilation

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

Find the measure of x:

• 6

• 24

• 33

• 36