Quiz about Dilations with Measurement

Question 1

Triangle ABC will be dilated by a scale factor of 1/2. What will be the coordinates of C'?

Accepted Answer

(3, -1.5)

Answer

(-1, -2.5)

Answer

(12, 6)

Answer

(0, 1.5)

Question 2

Polygon ABCDE will be dilated by a scale factor of 2. Which statement is NOT true of the dilation?

Accepted Answer

The original and the image will be congruent.

Answer

The corresponding angles of the two polygons will be equal.

Answer

The dilation will be an enlargement.

Answer

Polygon A'B'C'D'E' will be proportional to polygon ABCDE.

Question 3

Dilate the figure by a scale factor of 3 with the origin as the center of dilation. What are the coordinates of the image?

Accepted Answer

A'(9,9) B'(18,18) C'(27,9)

Answer

A'(6,6) B'(9,9) C'(12,6)

Answer

A'(0,0) B'(3,3) C'(6,0)

Answer

A'(1,1) B'(2,2) C'(3,1)

Question 4

Choose the correct scale factor:

Accepted Answer

2

Answer

3

Answer

1/3

Answer

1/2

Question 5

What type of dilation is represented? black to blue

Accepted Answer

Reduction

Answer

Enlargement

Question 6

What is the scale factor of this dilation?

Accepted Answer

$$\frac{1}{2}$$

Answer

2

Answer

$$\frac{1}{4}$$

Answer

4

Question 7

What type of dilation is represented? blue to purple

Accepted Answer

Enlargement

Answer

Reduction

Question 8

What type of dilation is represented? green to purple

Accepted Answer

Reduction

Answer

Enlargement

Question 9

What type of dilation is represented? Purple to orange

Accepted Answer

Reducton

Answer

Enlargement

Question 10

Is the following a dilation?

Accepted Answer

Yes

Answer

No

Question 11

What type of dilation is represented? blue to green

Accepted Answer

Reduction

Answer

Enlargement

Question 12

When the scale factor of a dilation is less than one, the dilation is a reduction.

Accepted Answer

True

Answer

False

Question 13

Enlargement or reduction? Find the scale factor!

Accepted Answer

It's a reduction; the scale factor is 1/2.

Answer

It's a reduction; the scale factor is 2.

Answer

It's an enlargement; the scale factor is 2.

Answer

It's an enlargement; the scale factor is 1/2.

Question 14

Enlargement or reduction? Find the scale factor!

Accepted Answer

It's an enlargement; the scale factor is 2.

Answer

It's an enlargement; the scale factor is 1/2.

Answer

It's a reduction; the scale factor is 1/2.

Answer

It's a reduction; the scale factor is 2.

Question 15

Triangle ABC is dilated so that the coordinates of C' are (2, -1). What was the scale factor of the dilation?

Accepted Answer

1/3

Answer

3

Answer

2

Answer

1/2

Question 16

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

Accepted Answer

multiplication

Answer

addition

Answer

subtraction

Answer

division

Question 17

The two rectangles are scale drawings. What is the measurement of x?

Accepted Answer

20

Answer

21

Answer

1.25

Answer

4

Question 18

The original perimeter of a rectangle is 30cm, if we enlarge it by a scale factor of 4 what is the new perimeter?

Accepted Answer

120

Answer

480

Answer

1920

Dilations with Measurement

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