viereckig

Viereckig is an adjective in German meaning four‑sided or four‑angled. It describes objects or shapes that have four corners or interior angles and is used in both everyday language and technical contexts. The term is broad: a viereckig shape can be a square, a rectangle, a trapezoid, or any other four‑sided polygon. It does not specify regularity, symmetry, or exact angle measures; a four‑sided figure may be convex or concave and may have any combination of angles.

In geometry, the noun for a four‑sided polygon is Viereck (das Viereck). The adjective viereckig is used to attribute this property to a figure or object, for example ein viereckiges Blatt or eine viereckige Platte. The term is closely related to, but broader than, vierkantig; vierkantig often describes something square or square‑like, while viereckig simply indicates four sides regardless of whether the angles are right angles.

Viereckig is common in everyday German when something has a roughly four‑edged appearance, such as a tablet, a poster, or a tile. In precise geometric language, one would specify the exact type of four‑sided figure (for example quadrilateral, rectangle, square, kite, or trapezium).