Dodecagonal Antiprism Small 219×320 Medium 437×640 Large 699×1024 Download Tiff Original 2049×3000 | (400.6 KB) Download EPS Vector 196.2 KB Description Illustration of a dodecagonal antiprism. An antiprism is formed by having two parallel congruent bases connected by an alternating band of triangles. The bases in this illustration are dodecagons. Keywords antiprisms, bases, dodecagon, dodecagonal antiprism, geometric solid, Polyhedron, polyhedrons, triangle, triangles Galleries Antiprisms Source: Florida Center for Instructional Technology Clipart ETC (Tampa: University of South Florida, 2007)