Rigid Transformations

Translations, rotations, and reflections are three different types of what?

• Transformations
• Geometry
• Vectors
• Shapes

After a figure has been transformed, we call the new figure the...

• Image
• Different shape
• Figure that moved
• Prime

Which set of directions describes the translation from ABCD to A'B'C'D'?

• Down 6, left 3
• Down 3, right 6
• Up 3, left 6
• Up 6, right 3

Congruent means...

• The same angles.
• The same size and same shape.
• Equal to.
• The same transformation.

The mathematical term for the line that you reflect a shape over is the...

• Mirror
• Reflective tape
• Line that you reflect over
• Line of reflection

What is the best description for why two shapes are congruent after a reflection?

• They aren't.
• It's the same shape in a different place.
• The sides and angles do not change when you reflect.
• It's a reflection.

Which type of rotation will not change the orientation of an object?

• 90^o rotation
• 180^o rotation
• 270^o rotation
• 360^o rotation

If a shape in Quadrant 2 reflects over the x-axis, which quadrant will the reflection be in?

• Quadrant 1
• Quadrant 2
• Quadrant 3
• Quadrant 4

If a shape in Quadrant 1 reflects over the y-axis, which quadrant will the reflection be in?

• Quadrant 1
• Quadrant 2
• Quadrant 3
• Quadrant 4

What symbol is used to show that two things are congruent?

• ≠
• ≅
• ≡
• =