The skew angle refers to the angle between two lines or surfaces that are not perpendicular or parallel to each other. It is commonly used in geometry and engineering to describe the orientation of objects in three-dimensional space. Understanding the skew angle is essential for tasks such as structural design and computer graphics, where precise measurements are crucial. In the context of mechanical engineering, the skew angle can affect the performance of components like gears and shafts. A proper assessment of the skew angle ensures that parts fit together correctly, minimizing wear and tear and enhancing overall efficiency in machinery and systems.