Open Up Unit 2 Mid Unit Dilation Review

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(3,3) B(6,6) C(9,3)

• 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)

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CCSS.8.G.A.3

CCSS.8.G.A.4

The length of side CD in Polygon ABCD is 12 feet. What is the length of side C'D' in a dilated figure , if the scale factor is 4?

• 3

• 16

• 48

• 35

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CCSS.8.G.A.3

CCSS.8.G.A.4

What is the scale factor used to dilate figure PRG?

• 2

• 3

• 1/2

• 1/3

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CCSS.8.G.A.3

CCSS.8.G.A.4

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

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CCSS.8.G.A.3

CCSS.8.G.A.4

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

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CCSS.8.G.A.3

CCSS.8.G.A.4

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

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CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle ABC is dilated using a scale factor of 1/2. What are the new coordinates of point A'?

• (-3, 3)
• (-12, 12)
• (-2, 2)

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CCSS.8.G.A.3

CCSS.8.G.A.4

If a dilation produces a congruent figure, then the scale factor was equal to _____.

• 1/2
• 2
• 10
• 1

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CCSS.8.G.A.2

CCSS.8.G.A.3

Dilations only enlarge figures.

• True
• False

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CCSS.8.G.A.3

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A scale factor of 1/2 reduces a figure.

• True
• False

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CCSS.8.G.A.3

CCSS.8.G.A.4