Concept information
Preferred term
acute triangle
Definition(s)
-
An acute triangle (or acute-angled triangle) is a triangle with three acute angles (less than 90°). An obtuse triangle (or obtuse-angled triangle) is a triangle with one obtuse angle (greater than 90°) and two acute angles. Since a triangle's angles must sum to 180° in Euclidean geometry, no Euclidean triangle can have more than one obtuse angle.
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Acute_and_obtuse_triangles)
Broader concept(s)
Synonym(s)
- acute-angled triangle
In other languages
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French
-
triangle aigu
URI
http://data.loterre.fr/ark:/67375/PSR-NT3FZ03X-C
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