Similar Shapes Are Dilations

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

• 5 m

• 7 m

• 9 m

• 11 m

Tags

CCSS.HSG.SRT.A.2

A dilation always produces a similar figure. Similar figures have the same ______ but different ______. 

• measure; shapes

• sizes; shapes

• value; measures

• shape; sizes

Tags

CCSS.8.G.A.3

Determine the correct algebraic representation of the similar figures

• (x, y) -> (.5x, .5y)

• (x, y) -> (2x, 2y)

• (x, y) -> (x + 2, y + 2)

• (x, y) -> (x - .5, y - .5)

Tags

CCSS.HSG.CO.A.2

Which must be true of a scale factor of a dilation if the image is smaller that the pre-image?

• The scale factor is positive

• The scale factor is greater than 1

• The scale factor is between 0 and 1

• The scale factor is negative

Tags

CCSS.8.G.A.3

Find missing side

• 5

• 7

• 9

• 11

Tags

CCSS.HSG.SRT.A.2

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

• x = 12

• x = 3

• x = 40

• x = 4

Tags

CCSS.HSG.SRT.A.2

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

• x = 20

• x = 12

• x = 5

• x = 4

Tags

CCSS.HSG.SRT.A.2

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Tags

CCSS.8.G.A.3

A dilation produces a similar figure.

• True

• False

Tags

CCSS.8.G.A.3

Does the image show a Dilation? If yes, did the image enlarge, reduce or none of the above?

• Yes, enlarge

• Yes, reduce

• No

Tags

CCSS.HSG.SRT.A.2

CCSS.8.G.A.4