1. Geometry Sections 6.4 and 6.5 Prove Triangles Similar by AA Prove Triangles Similar by SSS and SAS

2. Angle-Angle (AA) Similarity Postulate If two angles of one triangle are congruent to two angles of another triangle, then the two triangles are similar

3. Examples Page 384 Problems # 3-8, 9, 11

4. Side-Side-Side (SSS) Similarity Theorem If the corresponding side lengths of two triangles are proportional, then the triangles are similar

5. Side-Angle-Side (SAS) similarity Theorem If an angle of one triangle is congruent to an angle of a second triangle and the lengths of the sides including these angles are proportional, then the triangles are similar

6. Examples Page 392 Problems # 5, 7, 11

7. Assignment Sections 6.4 and 6.5 Page 384 Problems # 10-14 even, #34 Page 392 Problems #6, 8, 10, 18-23