Similar Triangles

and Proportions

Color by Number

Name: ____________Answer Key__________ Hour: ________________ Date: _______

Similar Triangles and Proportions: Color – By – Number

Light Blue: 43 Gray: 50 Light Green: 20 Dark Blue: 21

Yellow: 47 Black: 80 Orange: 31 Pink: 2

Brown: 42 Red: 39 Dark Green: 35 Purple: 17

Color Bank:

Directions: All triangles are similar. Set-up and solve proportions to find the

value of x. Show all of your work.

1. x = 21 2. x = 20 3. x = 31

4. x = 2 5. x = 35 6. x = 17

7. x = 50 8. x = 42 9. x = 47

10. x = 43 11. x = 80 12. x = 39

x + 12

© Secondary Math Shop 2016

3x

7

3

x – 19

x – 13

1

7

3x – 2

x + 4

7

3

5

2

2x + 32

x + 14

9

4

2x + 6

x – 7

5 2

5 x + 7

2x

3

9

7

2x – 3

26

3

2

7

2

x + 10

3x

3

8

1

6

x – 28

x + 27

© Secondary Math Shop 2016 Clipart by: Krista Wallden

Name: ____________________________________________ Hour: ________________ Date: _______

Similar Triangles and Proportions: Color – By – Number

Light Blue: 43 Gray: 50 Light Green: 20 Dark Blue: 21

Yellow: 47 Black: 80 Orange: 31 Pink: 2

Brown: 42 Red: 39 Dark Green: 35 Purple: 17

Color Bank:

Directions: All triangles are similar. Set-up and solve proportions to find the

value of x. Show all of your work.

1. x = _______ 2. x = _______ 3. x = _______

4. x = _______ 5. x = _______ 6. x = _______

7. x = _______ 8. x = _______ 9. x = _______

10. x = _______ 11. x = _______ 12. x = _______

x + 12

© Secondary Math Shop 2016

3x

7

3

x – 19

x – 13

1

7

3x – 2

x + 4

7

3

5

2

2x + 32

x + 14

9

4

2x + 6

x – 7

5 2

5 x + 7

2x

3

9

7

2x – 3

26

3

2

7

2

x + 10

3x

3

8

1

6

x – 28

x + 27

© Secondary Math Shop 2016 Clipart by: Krista Wallden

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