AnswersCARE_24_25_TX-Mathematical Models with Applications ASymmetries in Shapes

Symmetries in Shapes Answers

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A regular polygon first maps directly onto itself after rotating 120 degrees. How many sides does the polygon have?

A
1
B
2
C
3
D
4
2
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Consider the symmetry of the "no” symbol.

Question illustration
A
1-fold
B
1-fold
C
2-fold
D
2-fold
E
3-fold
F
3-fold
G
4-fold
H
4-fold
3

Analyze the reflectional symmetry of the image.

Question illustration
A
0
B
1
C
2
D
4
4

Consider the rotational symmetry of equilateral triangle ABC.

Question illustration
A
30°
B
60°
C
120°
D
380°
5

For which shape is 180 degrees the smallest angle of rotational symmetry?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
6

A regular polygon first maps directly onto itself after rotating 20 degrees. How many sides does the polygon have?

A
5
B
9
C
12
D
18
7

For which shape is 45 degrees the smallest angle of rotational symmetry?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
8

Analyze the reflectional symmetry of the polygons labeled A, B, C, and D. Which polygons have fewer than two lines of symmetry?

Question illustration
A
A and B
B
B and C
C
A and C
D
C and D
9

Analyze the reflectional symmetry of the letters.

Question illustration
A
A and Y
B
R and N
C
I and Y
D
A and N
10

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Question illustration
0
0
1
1
2
2
4
4

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