Dilation Effect on Segments, Lines and Circles

Dilations only enlarge figures.

• True
• False

A scale factor of 1/2 reduces a figure.

• True
• False

A dilation creates a similar figure.

• True
• False

If a line segment has a length of 12 units and after a dilation the image length is 4 units, what was the scale factor?

• 3
• 1/3
• 8

The "image" is the shape before the dilation.

• True
• False

The __________ is the ratio of a length of the new figure 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 

A dilation can produce a smaller figure also known as a ______

• reduction
• enlargement
• scale factor
• center of dilation

 A dilation can produce a larger figure also known as a ______

• reduction
• enlargement
• scale factor
• center of dilation

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

• 1/2
• 2
• 10
• 1