<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">polygons</topic></authority><related type="narrower"><topic>decagons</topic></related><related type="narrower"><topic>dodecagons</topic></related><related type="narrower"><topic>triangles</topic></related><related type="narrower"><topic>pentagons</topic></related><related type="narrower"><topic>hexagons</topic></related><related type="narrower"><topic>octagons</topic></related><related type="narrower"><topic>quadrilaterals</topic></related><related type="narrower"><topic>digons</topic></related><related type="narrower"><topic>monogons</topic></related><related type="narrower"><topic>heptagons</topic></related><related type="narrower"><topic>nonagons</topic></related><related type="narrower"><topic>hendecagons</topic></related><related type="other"><topic>polygonal</topic></related><related type="broader"><topic>plane figures</topic></related><variant type="other"><topic>polygon</topic></variant> <note xml:lang="en"><![CDATA[ Geometric plane figures having three or more straight sides and the same number of angles. ]]></note></mads>