A pentagonal prism has 7 faces, 15 edges and 10 vertices
A pentagonal prism has two end faces of pentagons plus 5 rectangular faces between them; thus it has: 7 faces, 10 vertices and 15 edges.
A pentagonal prism. (:
A pentagonal dipyramid.
A prism is a polyhedron (a many sided 3D shape) with two identical and parallel faces called the bases. The vertices of the two bases are joined by straight lines forming a number of rectangular faces. For example, a pentagonal prism consists of 2 pentagonal faces and 5 rectangular faces, and has 15 edges and 10 vertices.
pentadecahedron * * * * * No. Even though I do not know the correct answer, I do know that that is not the correct answer. A pentadecahedron has 15 faces - NOT 15 edges. Polyhedra often have names with Greek prefices which refer to the number of faces.
A heptahedron is a polyhedron with 7 faces, and you can make one with 15 edges.
A pentagonal prism has 10 vertices and 15 edges. In addition, it has 2 pentagonal bases and 5 rectangular faces.