Degree (angle)
| Degree | |
|---|---|
One degree (shown in red) and eighty nine degrees (shown in blue). The lined area is a right angle. | |
| General information | |
| Unit system | Non-SI accepted unit |
| Unit of | Angle |
| Symbol | °[1][2], deg[3] |
| Conversions | |
| 1°[1][2] in ... | ... is equal to ... |
| turns | 1/360 turn |
| radians | π/180 rad ≈ 0.01745... rad |
| milliradians | 50π/9 mrad ≈ 17.45... mrad |
| gradians | 10/9g |
A degree (in full, a degree of arc, arc degree, or arcdegree), usually denoted by ° (the degree symbol), is a measurement of a plane angle in which one full rotation is 360 degrees.[4]
It is not an SI unit—the SI unit of angular measure is the radian—but it is mentioned in the SI brochure as an accepted unit.[5] Because a full rotation equals 2π radians, one degree is equivalent to π/180 radians.
- ^ HP 48G Series – User's Guide (UG) (8 ed.). Hewlett-Packard. December 1994 [1993]. HP 00048-90126, (00048-90104). Retrieved 6 September 2015.
- ^ HP 50g graphing calculator user's guide (UG) (1 ed.). Hewlett-Packard. 1 April 2006. HP F2229AA-90006. Retrieved 10 October 2015.
- ^ HP Prime Graphing Calculator User Guide (UG) (PDF) (1 ed.). Hewlett-Packard Development Company, L.P. October 2014. HP 788996-001. Archived from the original (PDF) on 3 September 2014. Retrieved 13 October 2015.
- ^ Weisstein, Eric W. "Degree". mathworld.wolfram.com. Retrieved 31 August 2020.
- ^ "Non-SI units accepted for use with the SI, and units based on fundamental constants" (PDF). Bureau International de Poids et Mesures. pp. 145–146. Archived from the original (PDF) on 16 March 2020.