How many degrees is a right angle?
Exactly 90 degrees
How many degrees is a acute angle?
More than 1 degrees less than 90 degrees
How many degrees is a obtuse angle?
More than 90 degrees less than 180 degrees
How many degrees is a straight angle?
Exactly 180 degrees
How many degrees is a reflex angle?
More than 180 degrees less then 360 degrees
How many degrees is a revolution?
Exactly 360 degrees