Unit 7: Similarity Review

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CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Which transformations preserve distance? Select all that apply.

• Rotation about (2, 3)

• Reflection across line y = x

• Dilation by factor 0.5

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CCSS.HSG.CO.A.2

What are the coordinates of the image of (2, 4) under a dilation with center R(6, −2) and scale factor 0.5?

• (4, 1)

• (5, 0)

• (3, 2)

• (4, 3)

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CCSS.8.G.A.3

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CCSS.HSG.CO.A.2

Quadrilateral QUAD is similar to quadrilateral PENT. Since the quadrilaterals are similar, there exists a transformation that maps QUAD onto PENT. Which transformation must exist?

• reflection

• rotation

• dilation

• translation

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CCSS.HSG.SRT.A.2

CCSS.8.G.A.4

Which best describes the sequence of transformations that maps ΔLMN to ΔL′M′N′, and what is the relationship of the triangles?

• dilation centered at O with scale factor 2, then translation left 1 and down 2; the triangles are similar

• translation right 1 and up 3, then dilation centered at O with scale factor 2; the triangles are congruent

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CCSS.HSG.SRT.A.2

CCSS.8.G.A.4

• (−35, 13)

• (−32, 12)

• (−11, 4)

• (−29, 7)

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CCSS.8.G.A.3

Which conclusion does the diagram support?

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CCSS.HSG.CO.C.10

Which statements are true? Select all that apply.

• A similarity transformation that maps one circle onto another must include a reflection.

• There is no similarity transformation that will map one circle onto another.

• All circles are similar.

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CCSS.HSG.SRT.A.2

CCSS.8.G.A.4

• ΔLMN ~ ΔL′M′N′

• ∠M ≅ ∠M′

• MN ~ L′M′

• ∠L ≅ ∠L′

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CCSS.HSG.SRT.A.2

CCSS.8.G.A.4