Angular measurements refer to the quantification of angles in geometric figures or physical spaces. They are typically expressed in degrees or radians, where a full circle is 360 degrees or 2\pi radians. These measurements are essential in various fields, including geometry, trigonometry, and engineering, as they help in understanding the relationships between different lines and shapes. In practical applications, angular measurements are used in navigation, construction, and robotics. For instance, in navigation, angles help determine direction and position, while in construction, they ensure structures are built accurately. Understanding these measurements is crucial for precise calculations and effective problem-solving.