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    <id>http://www.escolabr.com/portal/modules/planet/view.article.php?2108</id>
    <modified>2010-09-09T15:38:11-00:00</modified>
    <author>
        <name>ementa at gmail dot com</name>
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    <entry>
        <title>Homologias: os casos da homotetia, simetria axial e translação.</title>
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        <created>2008-04-15T19:22:34-00:00</created>
        <issued>2008-04-15T19:22:34-00:00</issued>
        <modified>2008-04-15T19:22:34-00:00</modified>
        <id>http://www.escolabr.com/portal/modules/planet/view.article.php?2108</id>
        <summary>Homotetia &lt;br /&gt;&lt;br /&gt;Trata-se de uma homologia de eixo impróprio e centro próprio. Cada par de pontos homólogos (AA') verifica a relação OA/OA' = OB/O'B' = k, sendo k um número real (razão de homotetia).&lt;br /&gt;No caso particular de ser k = -1, a homotetia é uma simetria central&lt;br /&gt;&lt;br /&gt;&lt;br /&gt;&lt;br /&gt; Simetria axial. &lt;br /&gt;&lt;br /&gt;É um caso particular da homologia afim: os pontos homólogos são simétricos em relação ao eixo, obliquamente ou&lt;br /&gt;Código: &lt;a href=&quot;http://geometrias.blogspot.com/2008/04/homologias-os-casos-da-homotetia.html&quot; target=&quot;_blank&quot;&gt;http://geometrias.blogspot.com/2008/04/homologias-os-casos-da-homotetia.html&lt;/a&gt; Arselio Martins&lt;br /&gt;Source: http://www.planeta.sitedaescola.com/modules/planet/view.article.php?4195 </summary>
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