It is a reflex angle
Oh, dude, 280 degrees is an obtuse angle. It's like when you're trying to squeeze into a tight parking spot but end up taking up two spaces. So yeah, it's definitely not a cute acute angle, it's more like a "I need some space" kind of angle.
It is a reflex angle because it is greater than 180 degrees
An angle greater than 90 degree is an obtuse angle.
An acute angle
A right angle
Acute angle
A right angle
complete angle
A right angle
straight angle
That would be an acute angle.