7th grade Similarity 7.5A

Triangle ABC is similar to triangle DEF. Which proportion can be used to find the length of  $\overline{DE}$  in centimeters?

•  $\frac{4}{3}=\frac{DE}{9}$  

•  $\frac{5}{15}=\frac{DE}{4}$  

•  $\frac{4}{DE}=\frac{9}{3}$  

•  $\frac{9}{DE}=\frac{3}{5}$  

Quadrilateral KLMN is similar to quadrilateral WXYZ. Which statement about these quadrilaterals must be true?

• $\frac{KL}{WX}=\frac{WZ}{KN}$

• Angle NKL is congruent to angle ZWX

• $\frac{KL}{YZ}=\frac{LM}{ZW}$

• Angle NKL is congruent to angle XYZ

Mr. Ortiz used similar triangles to make a design. Which statement about the triangles in the design must be true?

• The are the same size and shape.

• They are the same size but different shapes.

• They have corresponding angles that are congruent.

• They have corresponding sides that are congruent.

Figure JKLM is similar to figure PQRS. Which proportion must be true for these figures?

• $\frac{QR}{QP}=\frac{JK}{LM}$

• $\frac{QR}{KL}=\frac{RS}{JK}$

• $\frac{QR}{MJ}=\frac{PQ}{LM}$

• $\frac{QR}{KL}=\frac{PS}{JM}$

Similar polygons have corresponding sides that are proportional and corresponding angles that are

• congruent

• parallel

• similar

• proportional

Which best describes the pair of figures?

• similar

• not similar

Which best describes the pair of figures?

• similar

• not similar

Which best describes the pair of figures?

• similar

• not similar

Which best describes the pair of figures?

• similar

• not similar

All angles in similar figures are congruent.  

• True
• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6