Rotational About the Origin

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

• 180°

• 360°

• 90°

• No rotational symmetry

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

• 72°

• 180°

• 144°

• 45°

What is the angle of rotational symmetry?

• 360°

• 180°

• 120°

• 90°

Determine whether the figure has line symmetry, rotational symmetry, both, or neither.

• Rotational

• Reflectional

• Both

• Neither

A shape has rotational symmetry if the shape looks the same as the original shape after rotation even though it is less than one whole turn of 360⁰. What is the order of rotation in the recycling symbol?

• 1

• 2

• 3

• 1,000

The order of rotational symmetry is the number of times a shape looks the same as the original shape in one whole turn of 360⁰. Find the order of rotational symmetry in this shape.

• 2

• 3

• 4

• 5

The order of rotational symmetry of a regular polygon is the same as its number of sides.

Find the order of rotational symmetry in this shape.

• 4

• 8

• 7

• 6

What is the order of rotational symmetry for the shape below?

• 4

• 5

• 6

• 0

If a shape has 6 orders of rotational symmetry, which of the following regular polygons could it be?

• Square

• Hexagon

• Pentagon

• Heptagon

What is the angle of rotational symmetry when the order is 3?

• 30°

• 60°

• 90°

• 120°