Octahedron.
A pentagonal shape has 5 faces. For determining the name of a shape, it is determined by the amount of faces. For determining the amount of faces on a shape, it is determined by the pre fix of a word. tri-3 quad-4 pent-5. hex-6 hept-7 oct-8 non-9 deca-10 and so on.
hexagonal
A decahedron.
A 10-sided die has 10 triangular faces.
decahedron
A pentagonal shape has 5 faces. For determining the name of a shape, it is determined by the amount of faces. For determining the amount of faces on a shape, it is determined by the pre fix of a word. tri-3 quad-4 pent-5. hex-6 hept-7 oct-8 non-9 deca-10 and so on.
It is an octagonal prism that has a total sum of 10 faces
hexagonal
octahedron - a polyhedron with 8 faces
A decahedron.
A dodecahedron do = 2 deca = 10 hedron = faces so 2 +10 faces = do-deca-hedron as originally answered
A 10-sided die has 10 triangular faces.
decahedron
It is called a decahedron.
A pentagonal prism has 7 faces, 15 edges and 10 vertices
A shape that has 10 sides (two dimensional) is called a decagon. A shape that has 10 faces (three dimensional) is call a decahedron.
A shape that has fewer than 8 faces and fewer than 10 edges is a triangular prism. A triangular prism has 5 faces (2 triangular faces and 3 rectangular faces) and 9 edges. It meets the criteria of having fewer than 8 faces and fewer than 10 edges.