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Acute triangle
01
鋭角三角形
a triangle in which all three interior angles are less than 90 degrees
例
An equilateral triangle is always an acute triangle since all its angles are 60 degrees.
The triangle ABC is an acute triangle because angles A, B, and C are all less than 90 degrees.
When constructing an acute triangle, ensure that the sum of any two angles is greater than the third angle.
In an acute triangle, each angle measures less than 90 degrees.
The properties of an acute triangle make it unique in geometric proofs and constructions.
