Points on a sphere or angles in a circle are measured in degrees.
Step-by-step explanation:
A quantity may have different units which are used according to the context. Degree is the unit of measurement of angles. It is represented by the symbol added to the top right end of the magnitude value of the angle.
Radian is also a unit of measurement of angle. Degree and radian can be converted to each other. The conversion expression is
Degree=180/π*radian
Radian=π/180*degree
According to this expression 180° is equal to radian,90° equal to radians etc.