An angle that measures greater than 90 degrees is categorized as what type of angle?

An angle that measures greater than 90 degrees is categorized as an obtuse angle. This classification is based on the definitions of angle types in geometry. An obtuse angle ranges from just above 90 degrees to less than 180 degrees. The term "obtuse" specifically refers to angles that exceed the right angle, which measures exactly 90 degrees.

In contrast, an acute angle is defined as one that measures less than 90 degrees, while an oblique angle generally describes an angle that is not a right angle, covering both acute and obtuse types but is not specifically used to denote angles greater than 90 degrees alone. A scalene is a term used in geometry to describe a type of triangle where all sides and angles are of different lengths and measures, which is not relevant in the context of angle measurement.

Thus, the classification of angles is distinct, and the term obtuse clearly identifies angles specifically greater than 90 degrees, making it the correct choice.