The reflex angle is the larger angle. It is more than 180° but less than 360° If you choose the smaller angle you might have an Acute Angle, or an Obtuse Angleinstead: The larger angle is a Reflex Angle, but the smaller angle is an AcuteAngle.
An acute angle is an angle that measures between 0 and 90 degrees, and anobtuse angle is an angle that measures between 90 and 180 degrees. There is another type of angle that we hear much less about called a reflex angle. Reflex angles are angles measuring greater than 180 degrees and less than 360 degrees.