An oblique angle is an angle that is not a right angle, meaning it measures less than 90 degrees or more than 90 degrees but less than 180 degrees. These angles can be found in various shapes and figures, such as triangles and polygons, and are important in geometry for understanding the properties of different geometric forms. In contrast to acute angles, which are less than 90 degrees, and obtuse angles, which are greater than 90 degrees, oblique angles can be either of these types. Understanding oblique angles is essential in fields like architecture, engineering, and art, where precise measurements are crucial for design and construction.