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.
