The solid formed by 12 equal and regular pentagons as faces is called April 19, 2021 by admin Question: The solid formed by 12 equal and regular pentagons as faces is called A. plantonic solid B. dodacahedron C. icosahedron D. pyritohedron Answer» b. dodacahedron Note: The above multiple-choice question is for all general and Competitive Exams in India.