12*(12-3)/2 = 12*9/2 = 54
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No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.No, the faces of a regular dodecahedron are pentagonal.
Twelve.
4 diagonals
27 diagonals
A regular 12 sided dodecagon has 54 diagonals.