My recollection of math class geometry is poor... I think that an obtuse angle is greater than 90 degrees, a cute angle is less than 90 degrees, is a baby angle less than 5 degrees? LOL... don't mind the silliness--it happens often.
You'll have to excuse Urban...he can be obtuse at times, too. Just tell him that you heard the angle of his dangle is less than 5 degrees, and he'll shat ap.