Answer:
A degree is the common unit used for giving the size of an
angle. One complete turn is equivalent to 360°. So a right
angle, which is quarter of a turn is 90°.
The
degree is based on the system originally devised by the ancient
Mesopotamians who divided a circle into 360 parts. Bearings
are measured in degrees.
Temperature is also given in units called degrees but this
has no relation with angle measure.
