1. Introduction (Read Only)

Rigid Transformation

A rigid transformation is a translation, rotation, or reflection. We sometimes also use the term to refer to a sequence of these.

Congruent

One figure is called congruent to another figure if there is a sequence of translations, rotations, and reflections that takes the first figure onto the second. Remember congruent means an object is the same (i.e. same shape, same size).

Image

If a transformation takes  to , then  is the original (pre-image) and  is the image.