{"id":1037,"date":"2014-02-17T14:37:37","date_gmt":"2014-02-17T14:37:37","guid":{"rendered":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/?p=1037"},"modified":"2016-12-10T09:56:54","modified_gmt":"2016-12-10T09:56:54","slug":"la-corde-a-13-noeuds","status":"publish","type":"post","link":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/2014\/02\/17\/la-corde-a-13-noeuds\/","title":{"rendered":"La corde \u00e0 13 noeuds &#8211; Une d\u00e9couverte antique"},"content":{"rendered":"<p style=\"text-align: justify\"><a href=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/corde-13-noeuds.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft size-full wp-image-1040\" src=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/corde-13-noeuds.jpg\" alt=\"\" width=\"200\" height=\"163\" \/><\/a>Cette corde -appel\u00e9e aussi corde \u00e9gyptienne- a \u00e9t\u00e9 tr\u00e8s utilis\u00e9e dans l&rsquo;antiquit\u00e9 et au Moyen \u00c2ge. Elle est constitu\u00e9e de 13 n\u0153uds r\u00e9guli\u00e8rement r\u00e9partis entre lesquels on a 12 espaces \u00e9gaux. La corde une fois tendue peut former un triangle constitu\u00e9 de 3, 4 et 5 espaces dont la particularit\u00e9 est d\u2019avoir un angle droit entre ses deux c\u00f4t\u00e9s les plus courts.<br \/>\nCette corde permettait du coup de v\u00e9rifier la perpendicularit\u00e9 de deux \u00ab longueurs \u00bb.Certains ma\u00e7ons s&rsquo;en servent encore aujourd&rsquo;hui comme instrument de travail ; par exemple pour v\u00e9rifier la perpendicularit\u00e9 de deux murs.<\/p>\n<p style=\"text-align: justify\"><a href=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/Corde13noeuds_triangle_rectangle.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1041\" src=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/Corde13noeuds_triangle_rectangle.jpg\" alt=\"\" width=\"554\" height=\"150\" srcset=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/Corde13noeuds_triangle_rectangle.jpg 554w, https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-content\/uploads\/sites\/169\/2014\/02\/Corde13noeuds_triangle_rectangle-300x81.jpg 300w\" sizes=\"auto, (max-width: 554px) 100vw, 554px\" \/><\/a><\/p>\n<h4 style=\"text-align: left\"><strong>On veut prouver que le triangle 3,4 et 5 est bien un triangle rectangle. Quel th\u00e9or\u00e8me va-t-on utiliser <\/strong><span style=\"color: #888888\"><strong>?<\/strong><\/span><\/h4>\n<h4 style=\"text-align: left\">\u00a0<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Cette corde -appel\u00e9e aussi corde \u00e9gyptienne- a \u00e9t\u00e9 tr\u00e8s utilis\u00e9e dans l&rsquo;antiquit\u00e9 et au Moyen \u00c2ge. Elle est constitu\u00e9e de 13 n\u0153uds r\u00e9guli\u00e8rement r\u00e9partis entre lesquels on a 12 espaces \u00e9gaux. La corde une fois tendue peut former un triangle constitu\u00e9 de 3, 4 et 5 espaces dont la particularit\u00e9 est d\u2019avoir un angle droit &hellip; <a href=\"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/2014\/02\/17\/la-corde-a-13-noeuds\/\" class=\"more-link\">Continuer la lecture de <span class=\"screen-reader-text\">La corde \u00e0 13 noeuds &#8211; Une d\u00e9couverte antique<\/span>  <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":3930,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"h5ap_radio_sources":[],"footnotes":""},"categories":[54],"tags":[],"post_folder":[],"class_list":["post-1037","post","type-post","status-publish","format-standard","hentry","category-destination-maths"],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/1037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/users\/3930"}],"replies":[{"embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/comments?post=1037"}],"version-history":[{"count":0,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/posts\/1037\/revisions"}],"wp:attachment":[{"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/media?parent=1037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/categories?post=1037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/tags?post=1037"},{"taxonomy":"post_folder","embeddable":true,"href":"https:\/\/passerelle2.ac-nantes.fr\/ecole-hopital-nantes\/wp-json\/wp\/v2\/post_folder?post=1037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}