Geometry     Lesson 9-1 Geometric Ideas Lesson 9-2 Measuring and Drawing Angles Lesson 9-3 Angle Pairs Lesson 9-4 Constructions Lesson 9-6 Polygons Lesson 9-7 Triangles Lesson 9-8 Quadrilaterals Lesson 9-9 Circles Lesson 9-10 Congruent and Similar Figures Lesson 9-11 Transformations Lesson 9-13 Symmetry Lesson 9-14 Tessellations