{"id":24913,"date":"2023-04-08T20:08:45","date_gmt":"2023-04-08T19:08:45","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=24913"},"modified":"2023-04-08T20:23:05","modified_gmt":"2023-04-08T19:23:05","slug":"observa-a-figura-8","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=24913","title":{"rendered":"Observa a figura"},"content":{"rendered":"\n<p><ul id='GTTabs_ul_24913' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_24913' class='GTTabs_curr'><a  id=\"24913_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_24913' ><a  id=\"24913_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_24913'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<p>Observa a figura, cuja \u00e1rea \u00e9 67 cm<sup>2<\/sup>, e indica o valor de <em>x<\/em>:<\/p>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"24914\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=24914\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\" data-orig-size=\"412,206\" 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;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag151-18\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\" class=\"aligncenter wp-image-24914 size-medium\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18-300x150.png\" alt=\"\" width=\"300\" height=\"150\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18-300x150.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png 412w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p><strong>[A]<\/strong>\u00a0\\(8\\) cm ou \\( &#8211; 8\\) cm<br \/><strong>[B]<\/strong> \\(8\\) cm<br \/><strong>[C]<\/strong> \\(\\sqrt {32} \\) cm ou \\( &#8211; \\sqrt {32} \\) cm<br \/><strong>[D]<\/strong> \\(\\sqrt {32} \\) cm<\/p>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_24913' onClick='GTTabs_show(1,24913)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_24913'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><\/p>\n<blockquote>\n<p>Observa a figura, cuja \u00e1rea \u00e9 67 cm<sup>2<\/sup>, e indica o valor de <em>x<\/em>:<\/p>\n<\/blockquote>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"24914\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=24914\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\" data-orig-size=\"412,206\" 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;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag151-18\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png\" class=\"aligncenter wp-image-24914 size-medium\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18-300x150.png\" alt=\"\" width=\"300\" height=\"150\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18-300x150.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18.png 412w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<blockquote>\n<p><strong>[A]<\/strong>\u00a0\\(8\\) cm ou \\( &#8211; 8\\) cm<br \/><strong>[B]<\/strong> \\(8\\) cm<br \/><strong>[C]<\/strong> \\(\\sqrt {32} \\) cm ou \\( &#8211; \\sqrt {32} \\) cm<br \/><strong>[D]<\/strong> \\(\\sqrt {32} \\) cm<\/p>\n<\/blockquote>\n<p>A op\u00e7\u00e3o correta \u00e9 <strong>[D]<\/strong> \\(\\sqrt {32} \\) cm.<\/p>\n<p>Com efeito, as op\u00e7\u00f5es A e C podem ser exclu\u00eddas, pois \\(x &gt; 0\\), visto que traduz um comprimento n\u00e3o nulo.<\/p>\n<p>Como a \u00e1rea do ret\u00e2ngulo \u00e9 3 unidades, resulta que cada um dos quadrados ter\u00e1 32 unidades de \u00e1rea, pelo que ser\u00e1 \\(x = \\sqrt {32} \\) cm.<\/p>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_24913' onClick='GTTabs_show(0,24913)'>&lt;&lt; Enunciado<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Enunciado Observa a figura, cuja \u00e1rea \u00e9 67 cm2, e indica o valor de x: [A]\u00a0\\(8\\) cm ou \\( &#8211; 8\\) cm[B] \\(8\\) cm[C] \\(\\sqrt {32} \\) cm ou \\( &#8211; \\sqrt&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":24915,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[97,700],"tags":[424,195,705],"series":[],"class_list":["post-24913","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aplicando","category-monomios-e-polinomios","tag-8-o-ano","tag-operacoes-com-polinomios","tag-polinomios"],"views":128,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag151-18_520x245.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/24913","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=24913"}],"version-history":[{"count":0,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/24913\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/24915"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24913"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24913"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24913"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=24913"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}