It is an obtuse angle because it is greater than 90 but less than 180 degrees
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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.
It is an obtuse angle because it is greater than 90 but less than 180 degrees
21 degree angle
When an angle has a measure of 120 degrees, it is an obtuse angle. When an angle is an obtuse angle its measure is between 90 and 180 degrees. That is: 90 degrees < obtuse angle < 180 degrees.
An angle that measures 142 degrees is classified as an obtuse angle. In geometry, an obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees. It falls between a right angle (90 degrees) and a straight angle (180 degrees).