Lesson: Similar Triangles Holt Mathematics • Course 2 • Holt Mathematics • Course 1 • Geometry • Concepts and Skills • Glencoe • Geometry • Glencoe • Algebra 2 • Glencoe Math • Course 3 • Volume 2 • Math in Focus • Singapore Math • Course 3 • Volume B • Common Core • enVision • Geometry • Common Core • Prentice Hall • Geometry • Common Core • Prentice Hall • Mathematics • Course 3 • Common Core • Go Math! • Grade 8 • Middle School • Common Core • Glencoe • Algebra 2 • Common Core