LIGOURAS, P. Basic geometric-trigonometric equalities and problemsolving: Angular Elements. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology, [S. l.], v. 3, n. 2, p. 12, 2018. Disponível em: https://www.edimast.it/index.php/edimast/article/view/53. Acesso em: 1 may. 2025.