Square Pyramid National Museum of American History Polyhedron Model by Martin Berman, Pentagonal Pyramid National Museum of American History Polyhedron Model by Martin Berman, Triangular Cupola ...
Image caption, The faces of a prism are ... It is a prism.The cross-section is a pentagon.The 3D shape is a pentagonal prism. For all polyhedra the number of edges is two less than the sum of ...