What does a scale factor of 3 mean?

Every length in the new figure is 3 times the matching length in the original. Areas grow by the square of the factor, so 9 times.

How do I print or save these worksheets as a PDF?

Click Print worksheet and choose your printer, or pick “Save as PDF” as the destination to keep a digital copy. The answer key prints on its own page.

Can I get a fresh set of problems?

Yes. Click New problems for a brand new randomly generated worksheet, as many times as you like.

Is this worksheet generator free?

Yes. Every generator on the site is free to use, with no account, no watermark and unlimited printing for classroom or home use.

Scale factor worksheet generator

Scale factor practice with similar figures and scale drawings. Students scale up, scale down, or find the factor itself.

Scale Factor

Name: Date:

1.
Two similar rectangles: the first is 6 by 8, the second has a matching side of 36. Find the other side.
2.
Two similar rectangles: the first is 9 by 6, the second has a matching side of 54. Find the other side.
3.
Two similar rectangles: the first is 12 by 15, the second has a matching side of 24. Find the other side.
4.
Two similar rectangles: the first is 8 by 15, the second has a matching side of 48. Find the other side.
5.
Two similar rectangles: the first is 15 by 10, the second has a matching side of 90. Find the other side.
6.
Two similar rectangles: the first is 8 by 6, the second has a matching side of 24. Find the other side.
7.
Two similar rectangles: the first is 14 by 11, the second has a matching side of 70. Find the other side.
8.
Two similar rectangles: the first is 13 by 11, the second has a matching side of 65. Find the other side.
9.
Two similar rectangles: the first is 3 by 6, the second has a matching side of 12. Find the other side.
10.
Two similar rectangles: the first is 12 by 3, the second has a matching side of 36. Find the other side.
11.
Two similar rectangles: the first is 2 by 10, the second has a matching side of 6. Find the other side.
12.
Two similar rectangles: the first is 6 by 4, the second has a matching side of 36. Find the other side.
13.
Two similar rectangles: the first is 11 by 13, the second has a matching side of 22. Find the other side.
14.
Two similar rectangles: the first is 10 by 11, the second has a matching side of 20. Find the other side.
15.
Two similar rectangles: the first is 2 by 9, the second has a matching side of 12. Find the other side.
16.
Two similar rectangles: the first is 10 by 13, the second has a matching side of 60. Find the other side.
17.
Two similar rectangles: the first is 5 by 5, the second has a matching side of 20. Find the other side.
18.
Two similar rectangles: the first is 12 by 6, the second has a matching side of 48. Find the other side.
19.
Two similar rectangles: the first is 13 by 8, the second has a matching side of 26. Find the other side.
20.
Two similar rectangles: the first is 4 by 2, the second has a matching side of 24. Find the other side.

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Scale Factor — Answer Key

Name: Date:

1.
Two similar rectangles: the first is 6 by 8, the second has a matching side of 36. Find the other side.
48
2.
Two similar rectangles: the first is 9 by 6, the second has a matching side of 54. Find the other side.
36
3.
Two similar rectangles: the first is 12 by 15, the second has a matching side of 24. Find the other side.
30
4.
Two similar rectangles: the first is 8 by 15, the second has a matching side of 48. Find the other side.
90
5.
Two similar rectangles: the first is 15 by 10, the second has a matching side of 90. Find the other side.
60
6.
Two similar rectangles: the first is 8 by 6, the second has a matching side of 24. Find the other side.
18
7.
Two similar rectangles: the first is 14 by 11, the second has a matching side of 70. Find the other side.
55
8.
Two similar rectangles: the first is 13 by 11, the second has a matching side of 65. Find the other side.
55
9.
Two similar rectangles: the first is 3 by 6, the second has a matching side of 12. Find the other side.
24
10.
Two similar rectangles: the first is 12 by 3, the second has a matching side of 36. Find the other side.
9
11.
Two similar rectangles: the first is 2 by 10, the second has a matching side of 6. Find the other side.
30
12.
Two similar rectangles: the first is 6 by 4, the second has a matching side of 36. Find the other side.
24
13.
Two similar rectangles: the first is 11 by 13, the second has a matching side of 22. Find the other side.
26
14.
Two similar rectangles: the first is 10 by 11, the second has a matching side of 20. Find the other side.
22
15.
Two similar rectangles: the first is 2 by 9, the second has a matching side of 12. Find the other side.
54
16.
Two similar rectangles: the first is 10 by 13, the second has a matching side of 60. Find the other side.
78
17.
Two similar rectangles: the first is 5 by 5, the second has a matching side of 20. Find the other side.
20
18.
Two similar rectangles: the first is 12 by 6, the second has a matching side of 48. Find the other side.
24
19.
Two similar rectangles: the first is 13 by 8, the second has a matching side of 26. Find the other side.
16
20.
Two similar rectangles: the first is 4 by 2, the second has a matching side of 24. Find the other side.
12

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Frequently asked questions

What does a scale factor of 3 mean?: Every length in the new figure is 3 times the matching length in the original. Areas grow by the square of the factor, so 9 times.
How do I print or save these worksheets as a PDF?: Click Print worksheet and choose your printer, or pick “Save as PDF” as the destination to keep a digital copy. The answer key prints on its own page.
Can I get a fresh set of problems?: Yes. Click New problems for a brand new randomly generated worksheet, as many times as you like.
Is this worksheet generator free?: Yes. Every generator on the site is free to use, with no account, no watermark and unlimited printing for classroom or home use.