It is an obtuse angle because it is greater than 90 but less than 180 degrees
Chat with our AI personalities
21 degree angle
An angle of 159 degrees is considered an obtuse angle, as it measures greater than 90 degrees but less than 180 degrees. In standard position, it would fall in the second quadrant of a Cartesian coordinate system, between 90 and 180 degrees. This angle is often used in geometry, trigonometry, and physics to describe various measurements and relationships.
An acute angle
A right angle
straight angle