Dilations and Similar Figures

The pair of figures is similar. Find the missing side.

• x = 20
• x = 12
• x = 5
• x = 4

Tags

CCSS.HSG.SRT.A.2

Matching sides are called

• Corresponding Sides
• Corresponding Angles
• The Same
• Congruent Sides

Tags

CCSS.8.G.A.2

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Two objects that are the same shape but not the same size are _______.

• Congruent
• Vertical
• Similar
• Complementary 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

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

Tags

CCSS.8.G.A.3

Enlargement or reduction?  Find the scale factor!

• It's a reduction; the scale factor is 2.
• It's an enlargement; the scale factor is 2.
• It's an enlargement; the scale factor is 1/2.
• It's a reduction; the scale factor is 1/2.

Tags

CCSS.8.G.A.3

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

• True
• False

Tags

CCSS.8.G.A.3

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

• True
• False

Tags

CCSS.8.G.A.3

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

Tags

CCSS.7.G.A.1

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Tags

CCSS.HSG.CO.A.2