Describe Dilations

A rectangle has an area of 30 cm². The rectangle is dilated with a scale factor of 3. What is the area of the new rectangle?

• 30 cm²

• 90 cm²

• 270 cm²

• impossible to know

Tags

CCSS.7.G.A.1

A square has sides of 6 inches and is dilated to form a square that has sides of 24. What is the scale factor?

• 1/4 because 6/24 = 1/4

• 4 because 24/6 = 4

• 30 because 24 + 6 = 30

• No way to know with this information.

Tags

CCSS.8.G.A.3

If a Scale Factor is between 0 and 1, then your figure gets...

• Smaller

•  Bigger

• Turned upside-down

• Does not change

Tags

CCSS.8.G.A.3

If a Scale Factor if greater than 1, then your figure gets...

• Smaller

• Bigger

• Turned upside-down

• Does not change

Tags

CCSS.8.G.A.3

Describe the transformation in the image.

• translation

• reflection

• rotation

• dilation

Tags

CCSS.HSG.CO.A.2

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'(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)

Tags

CCSS.8.G.A.3

Dilate Point B by a scale factor of 1/2

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Tags

CCSS.8.G.A.3

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

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

• addition 

• subtraction 

• multiplication 

• division 

Tags

CCSS.8.G.A.3

An image is dilated at a scale factor of 1.5. This means the dilation is an enlargement and the dilated image will be bigger.

• True

• False

Tags

CCSS.8.G.A.3