A degree is a unit of measurement used to quantify angles. One full rotation around a point is equal to 360 degrees. This system helps in various fields, including geometry, navigation, and engineering, to describe the size of an angle formed by two intersecting lines. In a circle, each degree represents 1/360th of the total angle. For example, a right angle measures 90 degrees, while a straight angle measures 180 degrees. Degrees can also be divided into smaller units called minutes and seconds, where one degree equals 60 minutes and one minute equals 60 seconds, enhancing precision in measurements.