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Q: A solid having twelve equal and regular pentagons is called............
  • A. Icosahedron/विंशति फलक
  • B. Tetrahedron/चतुष्फलक
  • C. Dodecahedron/द्वादश फलक
  • D. Decahedron/दशफलक
Correct Answer: Option C -
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Explanations:

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