A reflex angle. Angles less than 90o are acute, more than 90o but less than 180o are obtuse, and those over 180o are reflex.
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Less than 90 degrees: Acute angle 90 degrees: Right angle More than 90 but less than 180: Obtuse angle 180 degrees: Straight angle More than 180 but less than 360: Reflex angle
A reflex angle.
obtuse angle
A straight angle is 180 degrees, while an obtuse angle is less than 180 but more than 90 (which is a right angle).
An angle which is more than 180 degrees but less than 360 degrees is called a reflex angle.