{"id":24,"date":"2011-02-23T13:26:06","date_gmt":"2011-02-23T12:26:06","guid":{"rendered":"http:\/\/www.clayinformatique.ch\/mathsenquestions2\/2011\/02\/23\/pyramides\/"},"modified":"2016-02-03T12:35:24","modified_gmt":"2016-02-03T11:35:24","slug":"pyramides","status":"publish","type":"post","link":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/?p=24","title":{"rendered":"Pyramides + objectifs"},"content":{"rendered":"

Objectifs<\/strong> :<\/p>\n\n\n\n
\n
    \n
  1. \n
    Conna\u00eetre le vocabulaire :
    \nbase, hauteur, apoth\u00e8me, apoth\u00e8me de base, apoth\u00e8me lat\u00e9ral, rayon du cercle circonscrit, c\u00f4t\u00e9 du polygone de base<\/span><\/span><\/span><\/h5>\n<\/li>\n
  2. \n
    Conna\u00eetre et appliquer les formules :
    \ndu volume, de l’aire lat\u00e9rale, de l’aire totale<\/span><\/span><\/span><\/h5>\n<\/li>\n
  3. \n
    Savoir rep\u00e9rer les triangles rectangles pour utiliser Pythagore<\/span><\/span><\/h5>\n<\/li>\n<\/ol>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Exercice 1<\/strong> :<\/p>\n

    Une pyramide a pour base un hexagone r\u00e9gulier. Les ar\u00eates lat\u00e9rales mesurent 15 cm.
    \nCalcule le volume et l’aire totale de cette pyramide sachant que sa hauteur est de 9 cm ?<\/span><\/p>\n

    Exercice 2<\/strong> :<\/p>\n

    On taille une pyramide r\u00e9guli\u00e8re dans un cube de granit ayant une masse de 1382,4 g.
    \nLa masse volumique du granit est de 2,7 g\/cm3<\/sup>
    \nLa pyramide et le cube ont la m\u00eame base et la m\u00eame hauteur.
    \nCalcule l’aire lat\u00e9rale de cette pyramide<\/span><\/p>\n

    Corrig\u00e9s<\/strong><\/em><\/a>
    \n<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

    Objectifs : Conna\u00eetre le vocabulaire : base, hauteur, apoth\u00e8me, apoth\u00e8me de base, apoth\u00e8me lat\u00e9ral, rayon du cercle circonscrit, c\u00f4t\u00e9 du polygone de base Conna\u00eetre et appliquer les formules : du volume, de l’aire lat\u00e9rale, de l’aire totale Savoir rep\u00e9rer les triangles rectangles pour utiliser Pythagore Exercice 1 : Une pyramide a pour base un hexagone Read More…<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-24","post","type-post","status-publish","format-standard","hentry","category-geometrie-11eme"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=\/wp\/v2\/posts\/24","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24"}],"version-history":[{"count":0,"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=\/wp\/v2\/posts\/24\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.clayinformatique.ch\/mathsenquestions2\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}