MANANA, Siyabonga; SIMONS, Marius. The Use of GeoGebra as an Instrument to Facilitate Grade 11 Learners’ Understanding of Cyclic Quadrilateral and Tangent Theorems: A Case Study. Futurity Education, [S. l.], v. 6, n. 1, p. 162–180, 2026. DOI: 10.57125/FED.2026.03.09. Disponível em: https://futurity-education.com/index.php/fed/article/view/566. Acesso em: 22 jul. 2026.