IDRIS, MOCHAMMAD; SHIDDIQ, MOHAMMAD MAHFUZH; ERIDANI, ERIDANI. AN AREA OF RIGHT TRIANGLE FOR TRIGONOMETRY. Jurnal Matematika UNAND, [S. l.], v. 12, n. 4, p. 267–275, 2023. DOI: 10.25077/jmua.12.4.267-275.2023. Disponível em: https://jmua.fmipa.unand.ac.id/index.php/jmua/article/view/1072. Acesso em: 4 nov. 2026.