What is the degree measurement of half a circle?

A half circle represents one-half of the full rotation around a circle, which is measured as 360 degrees. To determine the degree measurement of half a circle, you divide 360 degrees by 2. This calculation results in 180 degrees, indicating that a half circle spans an arc that extends from one point on the circumference, directly across the circle to another point, creating a straight line or diameter.

Understanding this concept is crucial, particularly in geometry and trigonometry, where the properties of circles are frequently applied. The choices offered include degrees associated with other fractions of a circle or complete rotations, highlighting the importance of knowing specific measurements related to circular geometry.