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A dodecahedron has 30 lines of symmetry. This is because each face of a dodecahedron is a regular pentagon, which has 5 lines of symmetry. Therefore, each face contributes 5 lines of symmetry, and since a dodecahedron has 12 faces, the total number of lines of symmetry is 5 x 12 = 30.

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120.

A regular Dodecahedron has 120 symmetries.

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16y ago
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Q: How many lines of symmetry does a dodecahedron have?
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