Dilations Practice

Tell whether the transformation is a dilation. Explain.

• No, scale factor isn't the same.

• Yes, scale factor is the same.

The red triangle has been dilated by a scale factor of 1/4, which triangle is it's new image? 

• green triangle 

• red triangle 

• black triangle

• none of these 

What is the scale factor of the dilation of ABC to XYZ?

• 2

• 3

Choose the correct scale factor:

• 2.5

• 1.5

• 3.5

• 4

Point M (8, 12) was dilated to become Point M' (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Which of the following best explains why ΔAB and ΔA'B' are similar?

• Sides AB and A'B' are congruent.

• Corresponding sides are congruent.

• Corresponding sides are proportional.

A dilation is which of the following: 

• only an enlargement

• only a reduction

• Either an enlargement or a reduction

• Neither an enlargement or a reduction

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