CPM Geometry Ch 3 Math Notes 3.1.1-3.1.4 Practice

A(n) (a)   is a transformation that maintains the shape of a figure but multiplies its dimensions by a chosen factor.

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CCSS.8.G.A.3

When a figure is dilated, what is the point from which a figure is stretched proportionally called?

• point of dilation

• origin

• line of reflection

• center of rotation

• corresponding angle

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CCSS.8.G.A.3

If a figure is dilated and the resulting image fully encloses the original figure, the point of dilation must be located __________________.

• inside the original figure

• outside the original figure

• at the origin

• on a vertex of the original figure

• on a side of the original figure

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CCSS.8.G.A.3

True or False: On similar figures, each pair of corresponding sides have a common ratio for their lengths.

• True

• False

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CCSS.8.G.A.2

CCSS.HSG.CO.B.6

A ______________________ is an equation that compares two or more ratios.

• proportion

• linear equation

• scale factor

• quadratic equation

• rational expression

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CCSS.7.G.A.1

Which of the following equations could correctly apply to the similar triangles below? (check all that apply)

• $\frac{a}{d}=\frac{b}{c}$

• $\frac{a}{c}=\frac{b}{d}$

• $\frac{a}{b}=\frac{c}{d}$

• $\frac{d}{c}=\frac{a}{b}$

• $\frac{c}{a}=\frac{d}{b}$

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CCSS.HSG.SRT.A.2

Which of the following statements is true based upon the similarity statement, ΔABC ~ ΔDEF? (check all that apply)

• ∠ABC ≅ ∠DFE

• ∠BAC ≅ ∠DEF

• ∠BAC ≅ ∠EDF

• ∠BAC ≅ ∠EFD

• ∠ACB ≅ ∠DFE

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CCSS.HSG.SRT.A.2

Which of the following is a correct similarity statement for the similar triangles above?

• ΔKLM ~ ΔPQR

• ΔMLK ~ ΔPRQ

• ΔMLK ~ ΔRQP

• ΔKLM ~ ΔRQP

• ΔLKM ~ ΔRQP

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CCSS.HSG.SRT.A.2

If ΔABC ~ ΔDEF, which side on ΔDEF corresponds with the side length from A to C on ΔABC?

•  $\overline{FD}$  

•  $\overline{FE}$  
  

•  $\overline{DE}$  
  

•  $\overline{EF}$  
  

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CCSS.HSG.SRT.A.2

Which of the following is a correct similarity statement for the similar triangles above? (check all that apply)

• ΔABC ~ ΔYZX

• ΔBCA ~ ΔZXY

• ΔACB ~ ΔYXZ

• ΔCBA~ ΔXYZ

• ΔBCA ~ ΔXZY

Tags

CCSS.HSG.SRT.A.2