Polyhedron with twelve faces.

A regular dodecahedron is a regular convex polyhedron whose faces are congruent regular pentagons. It is one of the five Platonic solids. It has 20 vertices, 30 edges and 12 faces.


When the length a of the edge of the dodecahedron is given, the volume V and total area A can be calculated using the following formulas:



Try Buzzmath activities for free

and see how the platform can help you.