Symmetry Answers

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What is the smallest angle of rotational symmetry for a square?

A
45º
B
90º
C
180º
D
360º
2
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Which triangle has 0 reflectional symmetries?

A
A triangle has all different side lengths and angle measures.
Option A
B
A triangle has all equal side lengths and angle measures.
Option B
C
A triangle has 2 equal side lengths and 2 equal angle measures.
Option C
D
A triangle has 2 equal side lengths and 2 equal angle measures.
Option D
3

Which letter in the word HAPPY has an order 2 rotational symmetry?

A
H
B
A
C
P
D
Y
4

How can a regular hexagon be folded to show that it has reflectional symmetry?

A
Fold the hexagon along a line from a vertex to the midpoint of an opposite side.
B
Fold the hexagon along a line connecting the two midpoints of adjacent sides.
C
Fold the hexagon along a line that bisects two vertex angles.
D
Fold the hexagon along a line that creates a right angle at a vertex.
5

Which statements are true about the lines of symmetry of a regular pentagon? Select three options.Every line connects two vertices.Every line connects the midpoints of 2 sides.Every line bisects a vertex angle.Every line bisects a side.Every line is perpendicular to a side.

A
Every line connects two vertices.
B
Every line connects the midpoints of 2 sides.
C
Every line bisects a vertex angle.
D
Every line bisects a side.
E
Every line is perpendicular to a side.
6

A rhombus has 4 equal sides.

Question illustration
A
1
B
2
C
3
D
4
7

Which figure has the same order of rotational symmetry as a rectangle?

A
isosceles trapezoid
B
regular octagon
C
square
D
rhombus
8

If the smallest angle of rotation for a regular polygon is 18°, how many sides does polygon have?

A
10
B
12
C
20
D
24
9

Which figure has an order 3 rotational symmetry?

A
right triangle
B
equilateral triangle
C
regular hexagon
D
right trapezoid
10

An equilateral triangle with all equal side lengths and angle measures.

Question illustration
A
1
B
2
C
3
D
4

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