Oxman V. Proof Without Words: One Elegant Relationship Between the Angles Formed in an Acute Triangle. ojsm [Internet]. 2022 Jul. 19 [cited 2026 Apr. 29];91(1):1. Available from: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/OJSM/article/view/8844