How many degrees are in a circle?

A circle is defined as a shape that is perfectly round and is made up of all points that are equidistant from a central point, known as the center. The measurement of a full rotation around a circle is quantified in degrees, which is a standard unit for measuring angles.

It is established that a complete circle contains 360 degrees. This means that if you were to make a full turn in a circular path, you would have turned through an angle of 360 degrees. This is a fundamental concept in geometry and is essential for understanding various properties and applications of circles in mathematics, trigonometry, and real-world contexts such as navigation and engineering.

The other options reflect common angle measurements but do not represent the total degrees in a full circle. For instance, 180 degrees corresponds to a straight angle, which is only half of a circle, while 90 degrees refers to a right angle, representing a quarter of a circle. Similarly, 270 degrees corresponds to three-quarters of a circle, falling short of a complete rotation. Therefore, 360 degrees is the accurate and definitive measurement for the total degrees in a circle.