Dilations

Triangle ABC was dilated to create Triangle A'B'C'. What is the scale factor?

• 3

• 1/3

• 2

• 1/2

In math, the word dilate means to _____ or _____ a figure.

• Reduce

• Enlarge

• Cut

• Translate

What is the scale factor from rectangle PQRS to rectangle ABCD

• 2

• 3

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True
• False

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

• addition 
• subtraction 
• multiplication 
• division 

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Dilate Point B by a scale factor of 3:

• (12,0)
• (12,12)
• (4,3)
• (0,12)

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?
A(3,3) B(6,6) C(9,3)

• A'(9,9) B'(18,18) C'(27,9)
• A'(6,6) B'(9,9) C'(12,6)
• A'(0,0) B'(3,3) C'(6,0)
• A'(1,1) B'(2,2) C'(3,1)

Quadrilateral MNOP is dilated with a scale factor of 1/3 using the origin as the center of dilation. What is N'?

• (0, 3)

• (2, 0)

• (0, 9)

• (3, 0)