An obtuse angle.
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A 150 degree angle is called an obtuse angle. In geometry, an obtuse angle is an angle that measures between 90 and 180 degrees. It is larger than a right angle (90 degrees) but smaller than a straight angle (180 degrees).
Obtuse.
90 degrees
A pair of supplementary angles adds up to 180 degrees. Therefore, the supplement to a 150 degree angle is 180 - 150 = 30 degrees.
reflex angle
An obtuse angle.