Dilations Intro and Scale Factor

In a DILATION, everything about the two shapes/images is congruent (same) except...

• size

• angles

• the type of shape

Tags

CCSS.8.G.A.3

Dilations create SIMILAR figures, which means the dimensions (side lengths) of the images must be...

• proportional ratios

• exactly the same

• even numbers

• odd numbers

Tags

CCSS.8.G.A.3

Even though the size of the image changed, which statement below explains why this is NOT an example of a dilation? (NOT similar figures)

• the width increased in size, but the height did not change at all (they must change the same way)

• the width of the image got larger, not smaller

• this is a dilation actually, because the image increased 3 times the original size

• these are not a dilation, because the two images are congruent

Tags

CCSS.8.G.A.3

SCALE FACTOR describes the number that is multiplied by a pre-image that determines...

• how many times bigger an image gets

• how many times smaller an image gets

• how many times bigger or smaller an image gets

Tags

CCSS.7.G.A.1

Which of the following scale factors could have possibly created the dilation shown?

• 
• 
• 
• 

Tags

CCSS.8.G.A.3

Which of the following transformations results in SIMILAR (not congruent) figures?

• translation

• reflection

• rotation

• dilation

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

In this dilation, point A would be considered...

• the center of dilation

• the scale factor

• the center of rotation

• the point of no return

Tags

CCSS.8.G.A.3

What is the scale factor from the small fry to the large fry?

• 1/3

• 48

• 4

• 3

Tags

CCSS.7.G.A.1

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Tags

CCSS.7.G.A.1

How is Figure F reduced to Figure B?

• Multiply each side by 1/2

• Multiply each side by 1/3

• Multiply each side by 1/4

• Multiply each side by 1/5

Tags

CCSS.7.G.A.1