A mathematical term describing a triangle where all three angles are acute angles (less than 90 degrees).
From Latin 'acutus' (sharp, acute) and 'angulus' (angle), literally meaning 'having sharp angles,' formed in the 17th century for geometric terminology.
Mathematicians created this term to distinguish different triangle types—an acutangular triangle is the 'sharpest' type because all its corners are pointy, which is why 'acute' means less than 90 degrees.
Complete word intelligence in one call. Free tier — 50 lookups/day.