Degree

A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by $^\circ$ (the degree symbol), is a measurement of plane angle, representing 1/360 of a full rotation; one degree is equivalent to $2\pi /360 rad$, $0.017453 rad$. It is not an SI unit, as the SI unit for angles is radian, but is an accepted SI unit.