Compass bearings are a way to describe direction using a compass. They are measured in degrees, with 0° representing north, 90° representing east, 180° representing south, and 270° representing west. Bearings can be expressed as a three-digit number, such as 045° for northeast, which helps navigators understand their direction more precisely. To use compass bearings, one must first identify their current location and the desired destination. By taking a bearing, individuals can determine the angle they need to travel relative to true north. This method is essential for activities like hiking, sailing, and orienteering, ensuring accurate navigation in various environments.