Topic 7 Review

For a dilation with a scale factor less than 1, how do the angles and side lengths of the preimage relate to the angles and side lengths of the image?

• A) Angles are proportional; side lengths are larger.

• B) Angles are proportional; side lengths are smaller.

• C) Angles are congruent; side lengths are larger.

• D) Angles are congruent; side lengths are smaller.

Tags

CCSS.8.G.A.3

What is the scale factor of the dilation shown?

• 1/2

• 3/2

• 5/2

• 2

Tags

CCSS.8.G.A.3

• (1, 2)

• (2, 4)

• (0.5, 2)

• (1, 4)

Tags

CCSS.8.G.A.3

Graph D₂(△XYZ).

Which best describes the composition of transformations that maps △LMN to △L'M'N'?

• (T(1, 3) ∘ D2)(△LMN)

• (T(−1, −2) ∘ D1/2)(△LMN)

• (D2 ∘ R_x-axis)(△LMN)

• (D1/2 ∘ R_x-axis)(△LMN)

Tags

CCSS.8.G.A.3

• (−35, 13)

• (−32, 10)

• (−28, 15)

• (−30, 12)

Tags

CCSS.HSG.CO.A.2

Given △STU and △DEF, what is m∠D?

• 29°

• 45°

• 60°

• 75°

Tags

CCSS.HSG.SRT.A.2

Given ΔLMN ~ ΔRST, which must be true? Select all that apply.

• m∠L = m∠R

• LM/RT = LN/RS

• m∠N = m∠T

• MN = ST

Tags

CCSS.HSG.SRT.A.2

Which condition would prove ΔDEF ~ ΔJKL?

• EF : KL = 2 : 1

• DF : JL = 2 : 1

• DE : JK = 1 : 2

• DF : JL = 1 : 2

Tags

CCSS.HSG.SRT.A.2

Given ΔVXY and ΔVWZ, what is VW?

• 43.2

• 50.0

• 35.5

• 60.1

Tags

CCSS.8.G.B.8