iReady 8th Grade Lesson One Vocabulary

Front

What is a rigid transformation?

Back

A transformation in which the size and shape of the figure does not change.

Front

List the types of rigid transformations.

Back

Translation (Slide), Reflection (Flip), Rotation (Turn).

Front

Which of the following is NOT a type of rigid transformation? Dilation, Translation, Reflection, Rotation.

Back

Dilation.

Front

What is the center of rotation?

Back

A fixed point around which a figure is rotated.

Front

Fill in the blank: The center of rotation is a _______ point around which a figure is rotated.

Back

fixed.

Front

What is a transformation in geometry?

Back

A change in location, orientation, or size of a figure.

Front

What happens to the size and shape of a figure during a rigid transformation?

Back

They do not change.

Front

What is the difference between a rigid transformation and a non-rigid transformation?

Back

Rigid transformations preserve size and shape; non-rigid transformations do not.

Front

Give an example of a rigid transformation.

Back

A translation of a triangle to a new position without changing its size or shape.

Front

What is a translation in geometry?

Back

A transformation that moves every point of a figure the same distance in the same direction.