Perform Similarity Transformations

Is the dilation from A to B an enlargement or a reduction?

• enlargement

• reduction

What is the scale factor of the dilation from A to B ?

• 1/4

• 1/2

• 1

• 2

What is the scale factor of the dilation from A to B ?

• 8

• 2

• 1/6

• 1/3

What is the scale factor of the dilation from A to B ?

• 2

• 1

• 1/2

• 1/3

Jordan is putting a photo of the lacrosse team in a full-page layout in the yearbook. The original photo is 4 inches by 6 inches. If the photo in the yearbook is 6 inches by 9 inches, what is the scale factor of the dilation?

• k = 1/2

• k = 5

• k = 3/2

• k = 9

What is the scale factor of the dilation shown ?

• 2/5

• 3/4

• 5/12

• 3

Quad OBCD is similar to Quad OHTE because:

• Quad OBCD can be reflected over the x axis and then rotated 90 degrees

• Quad OBCD can be reflected over the x-axis and then dilated about point O by a scale factor of 2.

• Quad OBCD can be reflected over the y-axis and then dilated about point O by a scale factor of 2.

• Quad OBCD can be reflected over the y-axis and then dilated about point O by a scale factor of 1/2.

What is the scale factor of this dilation?

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4

Pentagon ABCDE is similar to Pentagon RYMNT. Which of the following is correct.

• ∠C ≅ ∠M

• ∠T ≅ ∠E

• ∠Y ≅ ∠B

• ∠A ≅ ∠M

• ∠C ≅ ∠R