
planar:figure,

basic:shape,

interesting:shape,

geometric:shape,

closed:shape,

standard:figure,

familiar:shape,

geometric:figure,

straight:line,

geometrical:shape,

elementary:shape,

symmetrical:shape,

symmetrical:figure,

special:shape,
Category Nuances for regular_polygon:

geometric,

familiar,

elementary,

planar,

geometrical,

closed,

special,

straight,

symmetrical,

interesting,

basic,

standard,
Simple Categories for regular_polygon: