Pentagonal frustrum
<ul><li><a href="//commons.wikimedia.org/wiki/File:Pentagonal_frustum.png" title="File:Pentagonal frustum.png">Pentagonal_frustum.png</a>: <b>Maksim</b></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Nevetsjc" title="User:Nevetsjc">Nevetsjc</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Nevetsjc" title="User talk:Nevetsjc"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Pentagonal_frustum.png" title="File:Pentagonal frustum.png">Pentagonal_frustum.png</a></li></ul>