Geometry Chapter 4 Vocabulary

### transformation

An operation that moves or changes a geometric figure in some way to produce a new figure

### congruent

Figures where all parts of one figure are congruent to the corresponding parts of the other figure.

### reflection

A transformation that uses a line of reflection to create a mirror image of the original figure

### translation

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

### SSS

Postulate used to prove triangles are congruent if all 3 sets of corresponding sides are congruent.

### SAS

Postulate used to prove triangles are congruent if 2 sets of corresponding sides and their included angles are congruent.