Figures in Space Crossword

Two Regions that are separated by a place
two lines that do not belong to a common plane
the set of points in space at a constant distance from the center
a space figure that is the union of all points on a simple closed surface and all points in its interior
a simple closed surface formed by planar polygonal regions
a simple closed surface given by a polygon and a point not in the plane of the polygon
a simple closed surface that consists of two congruent polygons in parallel planes together with the lateral faces joining the bases, which are parallelograms
a prism whose lateral faces are all rectangles
a prism whose lateral faces are not perpendicular to the plane of the base
a polyhedron that has a convex surface, face that are congruent regular polygonal regions, and the same number of faces meeting at each vertex of the polyhedron
a three-dimensional shape with four faces
a three-dimensional shape with five faces
a three-dimensional shape with six faces
a simple closed planar curve
a simple closed surface generated by translating the points of a simple closed region in one plane to a parallel plane
If the line segments joining corresponding points in the two bases are perpendicular to the planes of the bases
If they are not perpendicular
the numbers V of vertices, F of faces, and E of edges of a polyhedron are related by the formula V + F = E + 2