Prism ... is in German Prisma => lex ↗ Prism here means a 3D-figure with at least two parralel sides. Also, all the sides must be polygons. Polygons are flat 2D-figures made up of straight lines (no curves allowed). all cubes are prisms all cuboids are prisms Prisma im Klexikon Prisma auf Wikipedia Zurück zur Startseite
