Question

How many vertices in decahedron

Answer 1

$\huge \bold \red{ < = = 20 = = > } \\ \\ \\ A \: regular \: dodecahedron \: has \: 12 \: faces \\ and \: 20 \: \\ vertices, \: whereas \: a \: regular \: icosahedron \\ \: \: has \: 20 \: faces \: and \: 12 \: vertices. \: Both \: have \: 30 \: edges.$