A square or rectanglular pyramid are the only solid figures that have exactly five faces.
The Pyramid
That one.
octagonal prism and decahedron
If restricted to plane faces, a rectangular pyramid or a triangular prism. With curved faces such shapes will usually not have names.
sphere
Solid figures are normally named after their number of faces.
A square or rectanglular pyramid are the only solid figures that have exactly five faces.
Those figures are called triangular prisms.
DECAHEDRONS
square and pentagonal pyramid
The Pyramid
That one.
octagonal prism and decahedron
octagonal prism and decahedron
If restricted to plane faces, a rectangular pyramid or a triangular prism. With curved faces such shapes will usually not have names.
Tetrahedron, Pentahedron,Hexahedron,Heptahedron,Octahedron.