No. They have more than 6.
There are many polyhedra. Some of them are: A heptagonal pyramid, A hexagonal dipyramid A parallelepiped (including cuboids, and more irregular versions)
A rectangular pyramid has 5 vertices.5 faces8 edges5 vertices
5 vertices
5 vertices and 8 edges.5 vertices and 8 edges.5 vertices and 8 edges.5 vertices and 8 edges.
it is nothing but a cuboid * * * * * It could be a rhombohedron or a parallelepiped - neither of which are cuboids.
'Penta' ; Latin for five(5), hence 5 vertices. Modern mathemtica and science falls back on a lot of Latin and Classical Greek names. Hence Bi/Di - 2 Tri = 3 Quad/Tetra = 4 Penta = 5 Hexa = 6 Hepta = 7 Octa = 8 Nona = 9 Deca = 10 Centa = 100 Mille = 1000 Even if you only learn the most base of Latin and Classical Greek , you would understandfrom much of the scientific nomenclature(naming system).
5 vertices.
pentagon: 5 vertices pentagagaon: 15 vertices
A pentagon has 5 sides that makes 5 vertices.
A pentahedron can have 5 or six vertices.
A hexahedron can have 5 to 8 vertices.