Similar Triangles and Proportions Color by Number
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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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