Section 4.1 – Congruent Polygons

If two polygons are congruent, then their respective angles and sides are congruent.

If the respective angles and sides of a polygon match, then the polygons are congruent.

Naming Polygons

When naming polygons, go around the figure (clockwise/counterclockwise) and list the vertices in order.

Polygon Congruence Postulate

Two polygons are congruent if and only if there is a correspondence between their sides and angles such that:

• Each pair of corresponding angles is congruent
• Each pair of corresponding sides is congruent