Chapter 7 Proportions and Similarity

Determine whether the dilation from figure W to W' is an enlargement or a reduction. Then find the scale factor of the dilation.

• reduction, 3/5

• reduction, 3/8

• enlargement, 5/3

• enlargement, 8/3

Determine whether the dilation from figure W to W' is an enlargement or a reduction. Then find the scale factor of the dilation.

• reduction, 7/11

• reduction, 4/11

• enlargement, 11/4

• enlargement, 11/4

Quadrilateral ABCD is similar to quadrilateral WXYZ. Find the scale factor of quadrilateral ABCD to quadrilateral WXYZ.

• 4

• 3/5

• 4/5

• 1.25

Find the value of x in the pair of similar polygons.

• 7.5

• 7.3

• 6

• 7

Quadrilateral EFGH is similar to quadrilateral RSTU. Find the value of y.

• 114

• 80

• 95

• 71

In the figure, VW ||YZ Find the value of x.

• 12

• 8

• 7.2

• 6

Find the value of y in the figure.

• 5

• 4

• 8

• 7

If triangle JKL is similar to triangle JTS, find the coordinates of point L.

• (0, -9)

• (0, 9/4)

• (0, -9/4)

• (0, 9)

Determine whether the triangles are similar. Explain your reasoning.

Based on the figure below, which statement is false?

• Triangle ABC is similar to triangle ADE

• line DE is parallel to line BC

• triangle ABC is congruent to tirangle ADE

• D is the midpoint of line AB