Dilations

A dilation always produces a similar figure. Similar figures have the same ______ but different ______. 

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

Did the image enlarge, reduce or none of the above?

• Enlarge

• Reduce

• None of the above

What scale factor was used to produce the image?

• 2

• 3

• 1/3

• 1/2

What scale factor was used to produce the image?

• 2.5

• 1.5

• 3.5

• 4

Under a dilation, which scale factor will result in a congruent image?

• -2

• 0

• 1

• ¹/₂

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

• addition 

• subtraction 

• multiplication 

• division 

If a dilation produces a congruent figure, then the scale factor was equal to _____

• 1/2

• 2

• 10

• 1

The ________ is an unmovable (fixed) point that a dilation expands from or shrinks towards.

• Center of Dilation

• Scale Factor

• Center of Rotation

• Line of Reflection

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