Respuesta :

Answer:

  At least zero and less than 90 degrees

Step-by-step explanation:

The angles of a triangle are classified as ...

  • acute -- less than 90°
  • right -- exactly 90°
  • obtuse -- greater than 90°

If x is the measure of an angle and ...

  0 ≤ x < 90°

then the angle is an acute angle.

Answer:

Less than 90 degrees and at least zero.

Step-by-step explanation:

If a right angle measures 90 degrees, an acute measures less than 90 degrees and at least zero.