An obtuse angle is just as easy to identify; any angle that is bigger than a right angle but less than a straight, flat line (91-179 degrees – remember them as obese or fat angles).

If an angle is greater than 90 degrees, but less than 180 degrees, it's called an obtuse angle. An angle greater than 180 degrees, but less than 360 degrees is called a reflex angle. SUBJECTS: Maths ...

An obtuse angle is just as easy to identify; any angle that is bigger than a right angle but less than a straight, flat line (91-179 degrees – remember them as obese or fat angles).