Can a polyhedron have for its faces

**(i)** 3 triangles?

**(ii)** 4 triangles?

**(iii)** a square and four triangles?

Since a polyhedron is a solid, which is bounded by four or more polygonal faces in such a way that pairs of faces meet along edges and three or more edges meet in each vertex, therefore,

**(i)** A polyhedron cannot for its faces have three triangles.

**(ii)** A polyhedron can for its faces have four triangles.

**(iii)** A polyhedron can for its faces have a square and four triangles.