11. In analytical geometry, determinants express the signed n-dimensional volumes of n-dimensional parallelepipeds . 12. Jean Metzinger and Robert Delaunay painted landscapes planted with cottages reduced to the severe appearance of parallelepipeds . 13. Also the whole parallelepiped has point symmetry " C i " ( see also triclinic ). 14. In 2009, dozens of perfect parallelepipeds were shown to exist, answering an open question of Richard Guy. 15. The tetrahedron is formed by slicing a parallelepiped along an arbitrary plane "'n " '. 16. It is a parallelepiped containing a certain spatial arrangement of atoms, ions, molecules, or molecular fragments. 17. Installed on a rectangular platform with step with smooth column, is a parallelepiped plinth and surmounted by cross. 18. In the case of an object that's shaped like a rectangular prism, it will deform into a parallelepiped . 19. A " perfect parallelepiped " is a parallelepiped with integer-length edges, face diagonals, and space diagonals. 20. A " perfect parallelepiped " is a parallelepiped with integer-length edges, face diagonals, and space diagonals.
