Degree (in full, a degree of ARC), usually symbolized by °, angle is a measure that can be formed on a flat field, describing the 1/360 of a full round. That is, large 1 degree is one juring on circle divided into 360 equal magnitude juring fruit. If the angle is declared against a reference meridian, angle shows a location on a great circle of a sphere (such as Earth, Mars, or the celestial sphere). 
The beginning of the circle divided into 360 ° is derived from the ancient BabylonianEmpire because the ancient Babylonian numeral system uses numbers based 60. While we are currently accustomed to use a numeral system based 10.
1 ° is equal to 60 minutes (60 ') and 1 ' equal to 60 seconds (60 "). Degrees and pembaginya units are the only units that the writing of numbers and symbols of the unitare not separated (e.g. 15 ° 30 ', not 15 ° 30 ').
The degree is not the only measure of the magnitude of the angle that is formed. In addition there are other units of degrees, i.e. radians. One radian equals to 57.2957795131 °. One round of the full magnitude of 2 * pi is the circumference of a circle berjari-jari 1.