Similar Polygons !?

cooperblu · 2020-11-05 03:55:10

Im super confused??? Anyone that can help me understand a bit better?

Find the scale factor of each if the polygons are proportional. Just like examples 1 and 3.
1. A = 2, 6, 8, 9 B = 4, 12, 16, 18

A. prop, s.f.= 1:4
B. prop, s.f.= 1:9
C. prop, s.f.= 1:5
D. prop, s.f.= 1:2
E. prop, s.f.= 1:10
F. prop, s.f.= 1:3
2. A = 2, 3, 6, 10 B= 6, 9, 18, 30

A. prop, s.f.=1:9
B. prop, s.f.=1:3
C. prop, s.f.=1:16
D. prop, s.f.=1:2
E. prop, s.f.= 1:18
F. prop, s.f.= 1:6
3. A = 7, 10, 14, 15 B = 17.5, 25, 35, 37.5

A. Prop, s.f. = 1:9
B. Prop, s.f. = 3:8
C. Prop, s.f. = 2:7
D. Prop, s.f. = 4:9
E. Prop, s.f. = 6:7
F. Prop, s.f. = 2:5
4. A = 4, 4, 5, 6 B = 1.2, 1.2, 1.5, 1.8

A. Prop, s.f. = 6:4
B. Prop, s.f. = 9:2
C. Prop, s.f. = 1:10
D. Prop, s.f. = 11:9
E. Prop, s.f. = 10:3
F. Prop, s.f. = 5:2
5. A = 9, 10, 16, 19 B = 41.4, 46, 73.6, 87.4

A. Prop, s.f. = 0.217
B. Prop, s.f. = 0.318
C. Prop, s.f. = 0.421
D. Not prop
E. Prop, s.f. = 0.294
F. Prop, s.f. = 0.721
6. A = 4, 9, 10, 14 B = 4.8, 10.8, 12, 16.8

A. Prop, s.f. = 0.227
B. Prop, s.f. = 0.756
C. Prop, s.f. = 0.841
D. Prop, s.f. = 0.621
E. Prop, s.f. = 0.124
F. Prop: s.f. = 0.833
7. A = 7, 7, 21, 23 B = 28.7, 28.7, 86.1, 94.3

A. Prop, s.f. = 0.244
B. Prop, s.f. = 0.215
C. Prop, s.f. = 0.284
D. Prop, s.f. = 0.297
E. Prop, s.f. = 0.236
F. Prop, s.f. = 0.212
8. A = 11, 11, 16, 19 B = 16.5, 16.5, 24, 28.5

A. Prop, s.f. = 4:7
B. Prop, s.f. = 2:3
C. Prop, s.f. = 3:9
D. Not prop
E. Prop, s.f. = 4:5
F. Prop, s.f. = 7:1
9. A = 4.4, 8.1, 20.1, 24.1 B = 15.4, 28.35, 70.35, 84.35

A. Prop, s.f. = 2:3
B. Prop, s.f. = 1:2
C. Prop, s.f. = 10:4
D. Prop, s.f. = 2:7
E. Prop, s.f. = 6:10
F. Prop, s.f. = 4:8
10. A = 1.2, 4.9, 18.6, 21.6 B = 0.24, .098, 3.72, 0.98

A. Prop, s.f. = 2:3
B. Prop, s.f. = 1:2
C. Prop, s.f. = 7:4
D. Not prop
E. Prop, s.f. = 7:8
F. Prop, s.f. = 10:2
With this next set of problems, I will give you the first polygon and the scale factor, you find the similar polygon, just like example 2 and 4.

11. A = 2, 3, 7, 10
SCALE FACTOR = 2

A. 6, 9 ,12, 15
B. 2, 5, 10, 12
C. 4, 6, 14, 20
D. 1, 5, 8, 15
E. 9, 10, 14, 25
F. 4, 8, 18, 23
12. A = 2, 5, 6, 9
SCALE FACTOR = 3

A. 8, 10, 22, 34
B. 3, 8, 15, 29
C. 7, 12, 16, 22
D. 6, 15, 18, 27
E. 2, 15, 18, 30
F. 18, 20, 29, 34
13. A = 5, 10, 13, 15
SCALE FACTOR = 0.5

A. 3.4, 8, 10.1, 20
B. 6, 7.2, 12.1, 18
C. 2.5, 5, 8, 11
D. 4, 5.5, 6.6, 10
E. 2.5, 5, 6.5, 7.5
F. 7.5, 9, 10.9, 16.7
14. A = 4, 5, 6, 15
SCALE FACTOR = 1.5

A. 4, 8.7, 11.2, 22
B. 5, 7.3, 9.1, 15
C. 8, 9.2, 15, 17.1
D. 6, 7.5, 9, 22.5
E. 7.4, 5, 8.3, 9.1
F. 9.9, 12, 18.2, 25
15. A = 2, 5, 16, 19
SCALE FACTOR = 2.9

A. 2.3, 5.5, 7.9, 9.5
B. 6.4, 9.2, 11.4, 25.2
C. 6, 7.8, 9.2, 13.5
D. 19, 26.8, 37, 42.5
E. 5.8, 14.5, 46.4, 55.1
F. 14, 17.4, 22.4, 32.9
16. A = 4, 5, 8, 16
SCALE FACTOR = 4.5

A. 18, 22.5, 36, 72
B. 10.4, 18, 29.2, 34
C. 5.2, 9.6, 10, 19.2
D. 3.5, 9, 15.4, 29
E. 16, 19.3, 26, 28
F. 20.2, 26, 29.9, 37.2
17. A = 1, 8, 18, 19
SCALE FACTOR = 2.8

A. 13, 19.6, 23.3, 36
B. 2.9, 9.9, 25.2, 48.7
C. 14, 18.8, 24.2, 38.8
D. 5, 9.2, 10, 13.4
E. 7.4, 8.9, 13.2, 19.1
F. 2.8, 22.4, 50.4, 53.2
18. A = 2, 3, 9, 14
SCALE FACTOR = 3.9

A. 2.4, 5.6, 7.8, 10.9
B. 9.2, 13.1, 27, 31.1
C. 6.4, 9.2, 18, 22.4
D. 7.8, 11.7, 35.1, 54.6
E. 4.7, 8.2, 12.5, 24.2
F. 3.9, 7.5, 10.2, 26.1
19. A = 0.7, 3.6, 7.7, 8
SCALE FACTOR = 2.6

A. 1.99, 9.26, 13.57 26.02
B. 2.91, 6.25, 7.18, 9.29
C. 6.75, 9.21, 10.01, 18.45
D. 3.74, 9.28, 40.05, 44.21
E. 1.82, 9.36, 20.02, 20.8
F. 5.29, 6.82, 9.71, 15.90
20. A = 8.2, 14.5, 15, 18.5
SCALE FACTOR = 4.6

A. 15, 26.1, 38.17, 41.07
B. 42.50, 65.98, 71.35, 75
C. 66.1, 72.8, 79, 86.04
D. 37.72, 66.7, 69, 85.1
E. 10, 14.27, 19, 27.3
F. 22.1, 27, 32.15, 40.05

thank you!

Bob · 2020-11-05 20:15:16

hi cooperblu

Welcome to the forum.

This same question has been asked before here:

http://www.mathisfunforum.com/viewtopic.php?id=25850

Bob

Math Is Fun Forum

#1 2020-11-05 03:55:10

Similar Polygons !?

#2 2020-11-05 20:15:16

Re: Similar Polygons !?

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