LEZARK, K. E.; CAPALDI, M. New Findings in Old Geometry: using triangle centers to create similar or congruent triangles. Minnesota Journal of Undergraduate Mathematics, Minneapolis, MN, v. 2, n. 1, 2016. Disponível em: https://pubs.lib.umn.edu/index.php/mjum/article/view/4124. Acesso em: 18 may. 2024.