A dodehedron does not exist. A regular dodecahedron has 20 vertices, 30 edges and 12 faces. A dodecahedron must have 12 faces, but it can have any number from 8 to 20 vertices and so 18 to 30 edges.
A dodecahedron has 12 sides.
how many faces does a rectangular prism have how many faces does a rectangular prism have
10 faces 10 faces
A cube has 6 faces.
A hexahedron has 6 faces.
A trapezoid is a quadrilateral and has four faces.