What does the term "angular" refer to in geometric contexts?

In geometric contexts, the term "angular" specifically refers to shapes or figures that have sharp corners or points, which are often a result of intersecting lines or edges that create angles. When discussing angular configurations, it indicates an emphasis on the presence of these distinctive sharp corners and vertices, as opposed to smooth or rounded shapes.

In contrast, the other choices represent different geometric characteristics. Curved shapes would imply a smooth, rounded form without sharp edges. Uniform thickness suggests a constant dimension throughout an object, which does not necessarily relate to the presence of angles. Flat surfaces involve planes without any protrusions or indentations, lacking the distinct sharpness associated with angular shapes. Focusing on sharp corners is essential for identifying and describing angular forms in geometric study and applications.