Basic Rigid Motions

A 90-degree angle is reflected across the y-axis. What is the angle measurement of the image?

• 90 degrees

• 180 degrees

• 360 degrees

• 45 degrees

Figure A has been reflected to form Figure A'.

Which angle is the same measure as <x?

• < m

• < n

What is the result of rotating a figure 180 degrees around the origin?

• The figure is unchanged.

• The figure is flipped upside down.

• The figure is mirrored across the x-axis.

• The figure is mirrored across the y-axis.

If a triangle is translated 5 units to the right and 3 units up, what is the new position of point (2, 3)?

• (2, 6)

• (7, 8)

• (5, 6)

• (7, 6)

Translations, reflections and rotations are transformations all known as ________________________.

• Geometry

• Basic Rigid Motions

• Congruent

True or False : When you transform a figure using basic rigid motions, it is congruent to the original figure.

• True

• False

A turn is also called a ___________.

• Translation

• Reflection

• Rotation

• Transformation

Name the transformation.

• Translation

• Reflection

• Rotation

When you reflect a shape, you ______ over an axis or line.

• Flip

• Rotate

• Slide

• Expand

Describe the Transformation

• Translation

• Reflection

• Rotation