Unit Two: Dilations

What type of transformation enlarges or shrinks a shape?

• translation

• dilation

• rotation

• reflection

Tags

CCSS.8.G.A.3

Tags

CCSS.8.G.A.3

What do we multiple our coordinates by when a dilation is occurring?

• a whole number

• a fraction

• different numbers

• scale factor

Tags

CCSS.8.G.A.3

Triangle ABC was dilated using the origin as its center of dilation to create triangle A'B'C'. What is this dilation's scale factor?

Tags

CCSS.8.G.A.3

Square ABCD has side lengths that are 9 inches long. The square is dilated to create square A'B'C'D'. Square A'B'C'D' has side lengths that are 3 inches long. Which scale factor was used to dilate square ABCD?

• 3

• 1/3

• 4

• 1/5

Tags

CCSS.8.G.A.3

Which scale factor will produce an enlargement?

• 5

• 0.3

• 1/2

• 1

Tags

CCSS.8.G.A.3

Which scale factor will produce a reduction?

• 8

• 1

• 0

• 0.9

Tags

CCSS.8.G.A.3

Which dilation rule would be used to make a shape get larger?

Tags

CCSS.8.G.A.3

A figure is dilated using a scale factor greater than 1. What happens to this figure?

• preserves

• enlarges

• reduces

• disappears

Tags

CCSS.8.G.A.3

A scale factor between zero and one is used to dilate a figure. What happens to this figure's size?

• enlarges

• preserves

• reduces

• turns to zero

Tags

CCSS.8.G.A.3