Question

The faces of a regular dodecahedron are what type of polygon?

A)
squares


B)
regular hexagons


C)
regular pentagons


D)
equilateral triangles

Answer 1

All the faces on a dodecahedron are regular pentagons.

Answer 2

A dodecahedron must have 12 faces

Of these 12 faces, two must be the top & base.

So there shall be 10 faces on the lateral surface.

Hence there shall be 5 on one half & 5 on the other half.

To have 5 faces on the base of a regular polygon, the base must have 5 sides.

So it must be a regular pentagon.

The faces of a regular dodecahedron are regular pentagons.

Option C) is the right answer.

An image is attached for your reference.