Line Segment Dilation

In the diagram shown below quadrilateral ABCD is dilated from the origin.

What scale factor was used for the dilation?

• 0.5

• 1.5

• 2

• 1

If the triangle at the right were to be dilated using a scale factor of 1/2 , which is the only triangle below that could represent the transformed image?

• A

• B

• C

• D

If you were to dilate line AB using point C as the center of dilation, which of the below would best describe the newly created image? (You may assume that the scale factor is not 1.)

• A line segment

• A ray

• A line that is parallel to line AB

• A line that is in the same place as line AB

A rectangle ABCD is dilated from point O to create the rectangle A’B’C’D’.

Given AB = 4 cm, A’B’ = 8 cm, and the area of ABCD = 10 cm² determine the ratio of the areas between the two similar shapes.

• 2/1

• 4/1

• 8/1

• 16/1

If a line segment has a length of 12 units and after a dilation the image length is 4 units, what was the scale factor?

• 3

• 1/3

• 8

The __________ is the ratio of a length of the new figure to the corresponding length on the original figure.

• reduction

• enlargement

• scale factor

• center of dilation

In a dilation what mathematical operation is used with the scale factor?

• addition 

• subtraction 

• multiplication 

• division 

If a figure has a side length that is 12 units long and is dilated such that the side length of the image is 24 units long, what is the scale factor?

• 1/2

• 12

• 2

• 6

Solve for X.

• 2 ft

• 3 ft

• 4 ft

• 6 ft

Which transformation(s) create(s) similar figures?

• Dilation

• Translation, Reflection, and Rotation

• Translation and Reflection

• Reflection and Rotation