Understanding rotational symmetry

Identify the smallest angle of rotation that maps the image to itself.

 $Use\ \ the\ \ formula\ \ \frac{360\degree}{n}$ Use the number of edges as n. 

• 90°

• 180°

• 45°

• 60°

What is one of the angles of rotation needed to rotate this octagon onto itself?

• 60
• 135
• 120
• 240

What is the order and angle of rotation of the flower?

• Order is 6, angle of rotation is 60 degrees

• Order is 4, angle of rotation is 90 degrees

• Order is 3, angle of rotation is 120 degrees

• Order is 6, angle of rotation is 30 degrees

What angles of rotational symmetry does this figure have? Check ALL that apply! (not all will be listed!)

• 60°

• 120°

• 45°

• 300°

• 90°

Find the order of rotational symmetry in this shape.

• 1

• 2

• 3

• 4

Which number of degrees below describes an angle that can rotate this regular polygon back onto itself?

• 200

• 315

• 135

• 90

Jamie claims that the shape has no order of rotational symmetry but has reflective symmetry.

Susan argues that the shape has an order of rotational symmetry because it fits exactly onto itself once in a complete turn.

Who is correct?

• Jamie

• Susan

• Both are correct

• Both are wrong

Which number of degrees below describes an angle that can rotate this regular polygon back onto itself?

• 315

• 60

• 320

• 72

Identify the smallest angle of rotation that maps the image to itself.

• 60°
• None
• 51.4°
• 45°

Identify the smallest angle of rotation that maps the image to itself.

• 90°
• 180°
• 45°
• 60°