Students’ Use of Multiple Solution Strategies to Find the Angle Between Two Intersecting and Non-perpendicular Lines. Mediterranean Journal of Social Sciences, [S. l.], v. 5, n. 6, p. 309, 2014. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/2420.. Acesso em: 16 jun. 2024.