Degrees of Rotation

Identify the transformation from A to D.

• 90^o Clockwise Rotation

• 180^o Rotation

• 270^o  clockwise Rotation

• 360^o Rotation

A counterclockwise rotation of 90° is equivalent to how many degrees of rotation clockwise?

• 90°

• 180°

• 270°

• 360°

What transformation will take the orange triangle to the yellow triangle?

• Rotate 180 degrees around the midpoint

• Reflect across the horizontal

• Translate along the horizontal

• Rotate 90 degrees clockwise around the midpoint

Describe a sequence of transformations that take T to T'.

• Rotate 90 degrees clockwise around C and translate C to A'

• Rotate 90 degrees clockwise around C and reflect over segment CB'

• Rotate 180 degrees and translate C to A'

• Reflect over segment BC and rotate 180 degrees

Does the figures have Rotational symmetry?​ ​ If so, give the magnitude (measure of the angle of rotation).?​ ​ ​

• yes

• 72

• no

• 360

• 180

• 60

• 45

• 90

• 48

• none

What is the angle of rotational symmetry?

• 360°

• 180°

• 120°

• 90°

Does the figures have Rotational symmetry?​ ​ If so, give the magnitude (measure of the angle of rotation).?​ ​ ​

• yes

• 72

• no

• 360

• 180

• 60

• 45

• 90

• 48

• none

Does the figures have Rotational symmetry?​ ​ If so, give the magnitude (measure of the angle of rotation).?​ ​ ​

• yes

• 72

• no

• 360

• 180

• 60

• 45

• 90

• 48

• none

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.

How many degrees was the figure rotated?

• 90 degrees counterclockwise 

• 180 degrees

• 90 degrees clockwise