a rectangular prism
There is no such object. A decahedron is a 3-d object with 10 faces whereas a dodecahedron is a 3-d object with 12 faces. Each of them can have different numbers of edges.
it is a rectangular prism...
A cube.
WHAT IS A SOLID WITH TWELVE faces and 30 edgesis a dodecahedron.
Any solid object with six faces is a hexahedron. A regular hexahedron (with 12 edges) is a cube where all the faces are squares An irregular hexahedron (with 12 edges) is a cuboid where two faces are equal squares and four are equal rectangles.
Rectangular prism (which includes cubes)
A cube has 6 faces, 12 edges, and 8 vertices (corners.)
A rectangular prism is solid 3-dimensional object which has six faces that are rectangles. It has 12 edges and 8 vertices.
It has 14 Faces, 24 Edges, and 12 Vertices
Faces: 6Vertices [or corners]: 8Edges: 12eight.
Faces = 6 Edges = 12 Vertices = 8