Polygons and Dilations

Find the missing side if you know the figures are similar and have the same orientation.

• x = 9

• x = 28

• x = 7

• x = 63

Tags

CCSS.HSG.SRT.A.2

What is the scale factor from MNOP to ABCD?

• 2:3

• 1:2

• 3:2

• 2:1

Tags

CCSS.7.G.A.1

Triangle ABC will be dilated by a scale factor of 1/2 about the point (-4, -1). What will the coordinate of B' be?

• (0, 1.5))

• (-2, 2)

• (-2, 1)

• (-6, -3)

Tags

CCSS.8.G.A.3

What are the coordinates of the pre-image B if the image is located at B' (-8, 4) after a dilation with a center at the origin with a scale factor of 2.

• (0, 0)

• (-4,2)

• (-16,8)

• unable to determine

Tags

CCSS.8.G.A.3

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

The two polygons are similar. If 6 corresponds to 4, what is the value of x?

• 1

• 1.8

• 2

• 3.5

Tags

CCSS.HSG.SRT.A.2

Which triangle is similar to the above triangle ?

• A

• B

• C

• D

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Determine if the triangles are similar. Justify.

• Yes, by SSS.

• Yes, by SAS. Scale Factor is 1:2.

• Yes, by SAS. Scale Factor is 3:1.

• No, not similar.

Tags

CCSS.HSG.SRT.B.5

Which is the center point is the center of dilation?

• A

• B

• C

• D

Tags

CCSS.8.G.A.3

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Tags

CCSS.HSG.SRT.A.2