| APA | Smart Define. (2011). right-angled triangle thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/right-angled_triangle/thesaurus/antonyms |
| Chicago | Smart Define. 2011. "right-angled triangle thesaurus" https://smartdefine.org/right-angled_triangle/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2011, right-angled triangle thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/right-angled_triangle/thesaurus/antonyms>. |
| MLA | Smart Define. "right-angled triangle thesaurus" 26 April 2011. Web. 23 September 2026. <https://smartdefine.org/right-angled_triangle/thesaurus/antonyms> |