SEGAL, .; STUPEL, .; FLORES, . Examples of multiple proofs in geometry: Part 1, tasks and hints. Ohio Journal of School Mathematics, [S. l.], v. 74, n. 2, 2017. Disponível em: http://voyager.janeway.systems:9999/index.php/OJSM/article/view/5617. Acesso em: 7 nov. 2026.