An acute triangle on an Euclidean plane is a triangle on an Euclidean plane where all three of its angles are acute angles?, that is, they have an angle measure less than .
John Baez, The Moduli Space of Acute Triangles, Notices of the American Mathematical Society, Volume 71, Number 5, pages 664-665, May 2024. (arXiv:2407.06201, pdf)
Wikipedia, Acute and obtuse triangles
Created on January 13, 2025 at 04:18:55. See the history of this page for a list of all contributions to it.