Question 1

Rectangle T undergoes a dilation with scale factor 2. The resulting image is Rectangle M. Which statement about Rectangle T and M is true?

Accepted Answer

They are similar but not congruent

Answer

They are neither congruent or similar.

Answer

They are congruent but not similar.

Answer

The are congruent and similar.

Question 2

A figure is dilated by .25. What is the ratio of the line segments of the image compared to the original?

Accepted Answer

$\frac{1}{4}$

Answer

$\frac{1}{2}$

Answer

$\frac{1}{3}$

Answer

2

Question 3

The circle shown below is centered at (0,0) and passes through the point P located at (2,0). The circle is dilated with a center of dilation at the origin and a scale factor of 2. What are the coordinates of the image of point P after this transformation?

Accepted Answer

(4,0)

Answer

(0,4)

Answer

(0,1)

Answer

(1,0)

Question 4

Two triangles are similar. One triangle has angles that are 20 degrees and 30 degrees.  Which could be the angles in the second triangle?

Accepted Answer

30 and 130

Answer

20 and 140

Answer

20 and 180

Answer

30 and 120

Question 5

On a coordinate plane, I graphed a circle in the first quadrant.  I want to use dilations to make it into an oval in the second quadrant.

Accepted Answer

The transformation cannot be done because  the figures are not similar.

Answer

The transformation can be done with dilation to make it smaller

Answer

The transformation cannot be done because the figures are in different quadrants.

Answer

The transformation can be done with dilation to make it bigger

Question 6

What happens to the side lengths in a dilation?

Accepted Answer

They get shorter or longer.

Answer

They get shorter

Answer

They stay congruent

Answer

They get longer

Question 7

What happens to the angles in a dilation?

Accepted Answer

They stay congruent

Answer

They get bigger or smaller

Answer

They get smaller

Answer

They get bigger

Question 8

Point A (8,6) is on triangle ABC.  What is A' under a dilation of 0.75

Accepted Answer

(6,4)

Answer

(9,7)

Answer

(3,6)

Answer

(7,5)

Question 9

Point A (8,6) is on triangle ABC.  What is A' under a dilation of 2.5

Accepted Answer

(20,15)

Answer

(3.2,2.4)

Answer

(16,12)

Answer

(9,7)

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