This document discusses congruent figures and triangles. It defines congruent figures as those where all corresponding parts are equal in measure. It presents the Third Angle Theorem which states that if two angles of one triangle are equal to two angles of another triangle, then the third angles are also equal. It also lists properties of congruent triangles, including: triangles being congruent to themselves (reflexive property), if A is congruent to B then B is congruent to A (symmetric property), and if A is congruent to B and B is congruent to C, then A is congruent to C (transitive property). The document assigns homework problems related to these concepts.