Angles are typically measured in degrees (°) or in radians (rad), where 360° = 2 rad. The use of degrees is most common in geography, astronomy, and engineering, where radians are commonly used in mathematics and theoretical physics. The unit for radial distance is usually determined by the context, as occurs in applications of the 'unit sphere', see applications.
Angles are typically measured in degrees (°) or in radians (rad) where 360° = 2 rad. The use of degrees is most common in geography, astronomy, and engineering, where radians are commonly used in mathematics and theoretical physics. The unit for radial distance is usually determined by the context as occurs in applications of the 'unit sphere', see applications