Question

what is an acute triangle? acute triangles are triangles in each angle is acute , meaning less than 90 degrees. an acute triangle is a triangle with one obtuse angle (greater than 90°) and two acute angles

Explanation:

An acute - angled triangle is defined as a triangle where all three interior angles are less than 90 degrees. The statement in the blue box is incorrect as a triangle with one obtuse angle is an obtuse - angled triangle, not an acute - angled triangle.

Answer:

An acute triangle is a triangle in which each angle is acute, meaning less than 90 degrees.