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{"id":10379,"date":"2012-10-13T21:05:20","date_gmt":"2012-10-13T20:05:20","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=10379"},"modified":"2022-01-20T00:16:46","modified_gmt":"2022-01-20T00:16:46","slug":"a-planta-da-casa-do-pedro","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=10379","title":{"rendered":"A planta da casa do Pedro"},"content":{"rendered":"<p><ul id='GTTabs_ul_10379' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_10379' class='GTTabs_curr'><a  id=\"10379_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_10379' ><a  id=\"10379_1\" onMouseOver=\"GTTabsShowLinks('Resolu\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Resolu\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n\n<div class='GTTabs_divs GTTabs_curr_div' id='GTTabs_0_10379'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<div id=\"attachment_10382\" style=\"width: 249px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-10382\" data-attachment-id=\"10382\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=10382\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta.jpg\" data-orig-size=\"399,242\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Planta\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta.jpg\" class=\" wp-image-10382\" title=\"Planta\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta.jpg\" alt=\"\" width=\"239\" height=\"145\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta.jpg 399w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta-300x181.jpg 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/planta-150x90.jpg 150w\" sizes=\"auto, (max-width: 239px) 100vw, 239px\" \/><\/a><p id=\"caption-attachment-10382\" class=\"wp-caption-text\">Planta da casa do Pedro<\/p><\/div>\n<p>Observa a planta da casa do Pedro.<\/p>\n<p>Na planta, o quarto e o WC s\u00e3o quadrados.<\/p>\n<p>Qual \u00e9 a medida da \u00e1rea da cozinha.<\/p>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_10379' onClick='GTTabs_show(1,10379)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_10379'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><!--more--><\/p>\n<p><span style=\"text-decoration: underline;\"><span style=\"text-decoration: underline;\"><span style=\"text-decoration: underline;\"><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"10394\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=10394\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro.png\" data-orig-size=\"813,576\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Planta\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro.png\" class=\"alignright  wp-image-10394\" title=\"Planta\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro.png\" alt=\"\" width=\"390\" height=\"277\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro.png 813w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro-300x212.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro-150x106.png 150w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/plantaCasaPedro-400x283.png 400w\" sizes=\"auto, (max-width: 390px) 100vw, 390px\" \/><\/a><\/span><\/span>Determina\u00e7\u00e3o das dimens\u00f5es do WC<\/span>:<\/p>\n<p>Sabemos que a \u00e1rea de um quadrado pode ser expressa pela igualdade ${A_{Quadrado}} = l \\times l$, onde $l$ designa o comprimento do lado desse quadrado.<\/p>\n<p>Assim, como o WC tem $4$ m<sup>2<\/sup> de \u00e1rea, temos: $\\begin{array}{*{20}{c}} \u00a0 {4 = {l_1} \\times {l_1}}&amp; \\Rightarrow &amp;{{l_1} = 2} \\end{array}$.<\/p>\n<\/p>\n<p><span style=\"text-decoration: underline;\">Determina\u00e7\u00e3o das dimens\u00f5es do quarto<\/span>:<\/p>\n<p>De forma an\u00e1loga, como o quarto tem $16$ m<sup>2<\/sup> de \u00e1rea, vem: $\\begin{array}{*{20}{c}} \u00a0 {16 = {l_2} \\times {l_2}}&amp; \\Rightarrow &amp;{{l_2} = 4} \\end{array}$.<\/p>\n<\/p>\n<p><span style=\"text-decoration: underline;\">Determina\u00e7\u00e3o das dimens\u00f5es da sala<\/span>:<\/p>\n<p>Sabemos que a \u00e1rea de um ret\u00e2ngulo pode ser expressa pela igualdade ${A_{Ret\u00e2ngulo}} = c \\times l$.<\/p>\n<p>Assim, como a \u00e1rea da sala \u00e9\u00a0$24$ m<sup>2<\/sup> e a sua largura \u00e9\u00a0igual ao comprimento do quarto ($4$ m), temos: $$\\begin{array}{*{20}{c}} \u00a0 {24 = c \\times 4}&amp; \\Rightarrow &amp;{c = 6} \\end{array}$$<\/p>\n<\/p>\n<p>De acordo com as dimens\u00f5es calculadas e anotadas na planta, conclui-se que a cozinha tem $2$ m de largura e $10 &#8211; 2 = 8$ m de comprimento.<\/p>\n<p>Assim, a cozinha tem $2 \\times 8 = 16$ m<sup>2<\/sup> de \u00e1rea.<br \/>\n\u00ad<\/p>\n<p><strong>Alternativa<\/strong>:<\/p>\n<p>Como a casa do Pedro tem $6 \\times 10 = 60$ m<sup>2<\/sup> de \u00e1rea, ent\u00e3o a cozinha tem $60 &#8211; \\left( {4 + 16 + 24} \\right) = 60 &#8211; 44 = 16$ m<sup>2<\/sup> de \u00e1rea.<\/p><\/p>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_10379' onClick='GTTabs_show(0,10379)'>&lt;&lt; Enunciado<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Enunciado Observa a planta da casa do Pedro. Na planta, o quarto e o WC s\u00e3o quadrados. Qual \u00e9 a medida da \u00e1rea da cozinha. Resolu\u00e7\u00e3o &gt;&gt; Resolu\u00e7\u00e3o &lt;&lt; Enunciado<\/p>\n","protected":false},"author":1,"featured_media":20709,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[317,97,318],"tags":[428,324,320],"series":[],"class_list":["post-10379","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-7-o-ano","category-aplicando","category-numeros-inteiros","tag-7-o-ano","tag-areas","tag-multiplicacao"],"views":4522,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2012\/10\/7V1Pag019-5_520x245.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/10379","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10379"}],"version-history":[{"count":0,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/10379\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/20709"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10379"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10379"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10379"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=10379"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}