Rotations and Symmetry

What happens when a shape is transformed by a translation, reflection or rotation?

• the size and shape remain the same

• the size and shape change

• only the size changes

• only the shape changes

What order of rotational symmetry does this shape have?

• 1

• 2

• 4

• 6

This shape has

• line of symmetry only

• rotational symmetry only

• line of symmetry and rotational symmetry

How many lines of symmetry does this shape have?

• 2

• 4

• 6

• 8

Identify the angles of rotation that maps the image to itself.

• multiples of 120°

• multiples of 180°

• multiples of 90°

• multiples of 60°

How many lines of Symmetry does an equilateral triangle have?

• 3

• infinite

• 1

• 2

How many lines of symmetry does the picture have, and what is the angle of rotation?

• 0 lines of symmetry, 180 degrees

• 0 lines of symmetry, 360 degrees

• 2 lines of symmetry, 180 degrees

• 4 lines of symmetry, 90 degrees

How many lines of symmetry does this trapezoid have?

• 0

• 1

• 2

• 3

Which of the following plane figure has exactly 4 lines of symmetry?

• Square

• Rectangle

• Circle

• Triangle

Which of the following describes the sequence of transformations shown?

• Reflect across the x-axis and then rotate -90 degrees around the origin

• Rotate -90 degrees around the origin and then translate down.

• Reflect across the x-axis and then reflect across the y-axis.

• Translate up and then rotate 90 degrees about the origin.