In this series, part of the Math Education Outreach Project, Associate Dean Susann Novalis of the San Francisco State University School of Science helps students prepare for the Entry Level Mathematics Examination and for further study of college-level m athematics. This video describes the special triangles (the 45-45-90 triangle and the 30-60-90 triangle). See also vhs, AT # 80457. Susann Novalis.