![]() ![]() ![]() ![]() Program Resources Online Student Edition Student Workbooks Math in the Workplace Meet the Authors Problem-Solving Strategy Updates Chapter Resources Chapter Investigations Chapter Readiness Quiz Chapter Review Activities Chapter Test Concepts in Motion Data Updates Problem of the Week Cards Test Practice Lesson Resources Extra Examples Personal Tutor Self-Check Quizzes | MathematicsChapter InvestigationsChapter 3: Angles Discover how the midpoints of the sides of an equilateral triangle lead to a fascinating fractal. Log InThe resource you requested requires you to enter a username and password below: | |