​Geometric Transformations: Vocabulary

​Geometric Transformations: Vocabulary

By Amanda Drozdowski

​Preimage

The preimage is the original figure before a transformation is applied

Image

The image is the figure after a transformation has been applied to the preimage.

​Rigid Transformations

A rigid transformation is a transformation that does not change the size and shape of a figure.

Multiple Select

Which do you think are examples of rigid transformations?

• Translations

• Reflections

• Rotations

• Dilations

• Stretches

​Non-Rigid Transformations

A non-rigid transformation is a transformation that changes the size and/or the shape of a figure,

Multiple Select

Which do you think are examples of non-rigid transformations?

• Translations

• Dilations

• Stretches

• Compressions

• Reflections

Dropdown

Complete the following sentences based on the previous slides.

a. A rigid transformation ​

Select answer

change the size or shape of a figure.

b. A non-rigid transformation ​

Select answer

​ change the size or shape of a figure.