@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

psr:-ST8XF8P3-G
  skos:prefLabel "geometric drawing"@en, "construction géométrique"@fr ;
  a skos:Concept ;
  skos:narrower psr:-SW4ZJNWQ-P .

psr: a skos:ConceptScheme .
psr:-V516SJ3T-N
  skos:prefLabel "isogonal conjugate"@en, "conjugué isogonal"@fr ;
  a skos:Concept ;
  skos:related psr:-SW4ZJNWQ-P .

psr:-SW4ZJNWQ-P
  dc:modified "2023-08-10"^^xsd:date ;
  skos:related psr:-V516SJ3T-N, psr:-RX61SX55-G ;
  skos:exactMatch <https://en.wikipedia.org/wiki/Pedal_triangle> ;
  skos:broader psr:-ST8XF8P3-G ;
  skos:definition """In plane geometry, a pedal triangle is obtained by projecting a point onto the sides of a triangle. More specifically, consider a triangle <span class="texhtml">△<i>ABC</i></span>, and a point <span class="texhtml mvar" style="font-style:italic;">P</span> that is not one of the vertices <span class="texhtml mvar" style="font-style:italic;">A, B, C</span>. Drop perpendiculars from <span class="texhtml mvar" style="font-style:italic;">P</span> to the three sides of the triangle (these may need to be produced, i.e., extended).  Label <span class="texhtml mvar" style="font-style:italic;">L, M, N</span> the intersections of the lines from <span class="texhtml mvar" style="font-style:italic;">P</span> with the sides <span class="texhtml mvar" style="font-style:italic;">BC, AC, AB</span>. The pedal triangle is then <span class="texhtml">△<i>LMN</i></span>.
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Pedal_triangle">https://en.wikipedia.org/wiki/Pedal_triangle</a>)"""@en ;
  skos:prefLabel "pedal triangle"@en, "triangle podaire"@fr ;
  skos:inScheme psr: ;
  dc:created "2023-08-10"^^xsd:date ;
  a skos:Concept .

psr:-RX61SX55-G
  skos:prefLabel "triangle"@fr, "triangle"@en ;
  a skos:Concept ;
  skos:related psr:-SW4ZJNWQ-P .