This document discusses identifying congruent polygons and triangles. It defines congruent polygons as having the same size and shape, with corresponding angles and sides being congruent. It provides examples of naming corresponding parts of congruent polygons and using properties of congruency to solve problems. Special rules for congruent triangles are given, including side-side-side, side-angle-side, and angle-side-angle. Students are directed to an online resource and practice problems are assigned.