DILATIONS ASSESSMENT

Name: ______Date: ______

  1. Explain dilation.
  1. What is the scale factor of a dilation?
  1. Explain the difference between a dilation with a scale factor less than 1 and a dilation with a scale factor greater than1.
  1. A triangle with side lengths 3-5-7 is enlarged by a scale factor of 8. What are the side lengths of the enlarged triangle?
  1. A chemical company has developed a new cleaning solution which they will sell in a bottle that is 10 inches tall. They want to advertise the product on a billboard with an image of the bottle that is 10 feet tall. What scale factor will they use for the advertisement?

DILATIONS ASSESSMENT (P.2)

  1. What is the scale factor? ______What is the length of the unknown side? ______

Y
36
34
32
30
28
26
24
22
20
18
16 / /
14 /
12 /
10 / /
8
6 /
4 /
2 /
0 / X
2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24

DILATIONS ASSESSMENT (P.3)

  1. EFGH is a dilation of ABCD. =5.

What is the scale factor? ______What is the length of ? ______

Y
36
34 /
32
30
28
26
24
22
20
18
16 /
14
12
10 /
8
6
4 /
2 /
0 / / X
2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24

DILATIONS ASSESSMENT (P.4)

  1. Construct 4 dilations of the figure using the scale factors 2, 3, 4, and 5.

Y
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2 / /
0 / / X
2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24

DILATIONS ASSESSMENT (P.5)

  1. Construct a dilation of the image using a scale factor of .

Y
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
0 / X
2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24

DILATIONS ASSESSMENT (P.6)

  1. Construct a dilation of the image using a scale factor of .

Y
36
34
32
30
28
26
24
22
20
18
16
14
12
10 /
8
6
4
2
0 / / X
2 / 4 / 6 / 8 / 10 / 12 / 14 / 16 / 18 / 20 / 22 / 24