4 Degrees to Diameter Parts 4.1888. 90 Degrees to Diameter Parts 94.2478. 3 Degrees to Diameter Parts 3.1416. 80 Degrees to Diameter Parts 83.7758. 2 Degrees to Diameter Parts 2.0944. 70 Degrees to Diameter Parts 73.3038.
If you put your index and middle finger in a 'V' shape, they make an angle of approx. There are 90 degrees in a right angle, and 180 degress in an about turn. The Rigveda was written somewhen between 15 BC. Before that, the Rigveda mentions a wheel divided into 360 pegs. Timocharis of Alexandria is credited as one of the first Greeks to use 360 degrees and he lived between 320 and 260 BC. It seems likely that it was chosen due to it's closeness to the number of days in a year, and because it has an unusually large number of numbers by which it can be divided.
A degree can be subdivided into 60 minutes.
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