If it's less than 180 degrees . . . . . obtuse angle
If it's more than 180 degrees . . . . . reflex angle
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An angle more than 90o and less than 180o is an obtuse angle. An angle more than 180o is a reflex angle.
an angle measuring less than 90 degrees is called an acute angle
Obtuse. An acute angle is less than 90 degrees, a right angle is 90 degrees, and an obtuse angle is more than 90 degrees.
An acute angle is an angle measuring less than 90 degrees. An obtuse angle is an angle which is more than 90 degrees, but less than 180. A reflex angle is an angle which measures more than 180 degrees, but less than 360. So an angle of 97 degrees is an obtuse angle.
The name of an angle which measures greater than 90 degrees and less than 180 degrees is an obtuse angle.