360 degree's in a circle. 60 minutes in a degree and 60 seconds in a minute.
So effectively, there are 3600 different degree's within one degree.
Very difficult to measure seconds though and I never worry about them. IMO, its just a pattern maker trying to make himself look good by designing some technical bollox drawing. I got sent a drawing once and they wanted a 2 degree/46 minutes/25 seconds angle. I just put 3 degree's on it and no-one ever complained. |