Sentence Examples


  • (4) On the inscribing of each of the five regular polyhedra in a sphere.
  • The general theory of polyhedra properly belongs to combinatorial analysis.
  • Incidentally Pappus describes the thirteen other polyhedra bounded by equilateral and equiangular but not similar polygons, discovered by Archimedes, and finds, by a method recalling that of Archimedes, the surface and volume of a sphere.
  • Stevinus was the first to show how to model regular and semiregular polyhedra by delineating their frames in a plane.
  • If we project both polyhedra orthogonally on a plane perpendicular to the axis of the paraboloid, we obtain two figures which are reciprocal, except that corresponding lines are orthogonal instead of parallel.