acute triangle
Plural
acute triangles
1
a triangle in which all three interior angles are less than 90 degrees
- In an acute triangle, each angle measures less than 90 degrees.
- The triangle ABC is an acute triangle because angles A, B, and C are all less than 90 degrees.
- An equilateral triangle is always an acute triangle since all its angles are 60 degrees.
- The properties of an acute triangle make it unique in geometric proofs and constructions.
- When constructing an acute triangle, ensure that the sum of any two angles is greater than the third angle.
Synonyms: