<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31361622</termId><termName>polyhedra</termName><termType>PT</termType><termNote><![CDATA[ Solid figures or bodies having a finite number of plane faces (plane polygons). In general, polyhedrons are named according to number of faces (tetrahedron, pentahedron, hexahedron, etc.). ]]></termNote><termCreatedDate>2026-03-30 20:37:34</termCreatedDate><relation><relationType>UF</relationType><termId>31361623</termId><termName>polyhedron</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31361624</termId><termName>polyhedrons</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31327322</termId><termName>solids</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31402771</termId><termName>tetrahedra</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31402774</termId><termName>cubes</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31402776</termId><termName>pyramids</termName><termType>PT</termType></relation></term>  </Zthes>