{"id":6207,"date":"2016-01-05T12:55:14","date_gmt":"2016-01-05T11:55:14","guid":{"rendered":"http:\/\/www.matematicaok.it\/?p=6207"},"modified":"2016-01-07T09:45:05","modified_gmt":"2016-01-07T08:45:05","slug":"poligoni-regolari-definizione","status":"publish","type":"post","link":"https:\/\/www.matematicaok.com\/?p=6207","title":{"rendered":"Poligoni regolari: definizione, formule e propriet\u00e0"},"content":{"rendered":"<p>Un poligono con <em><strong>n<\/strong><\/em>\u00a0lati \u00e8 detto\u00a0regolare se tutti i suoi angoli interni e tutti i suoi lati\u00a0sono congruenti. Indichiamo con <em><strong>l<\/strong><\/em>\u00a0 la misura del lato e con <em><strong>a<\/strong><\/em>\u00a0l\u2019apotema\u00a0quale\u00a0segmento perpendicolare a un lato del poligono e che ha come estremo il centro del poligono stesso. Il rapporto \u00a0<em><strong>a<\/strong><\/em>\u00a0\/ <b><i>l\u00a0= \u00a0<em><strong>f<\/strong><\/em>\u00a0 \u00a0<\/i><\/b>\u00e8 chiamato <span style=\"text-decoration: underline;\">numero fisso<\/span> del poligono regolare<\/p>\n<p>&nbsp;<\/p>\n<table border=\"1\" width=\"50%\" cellspacing=\"0\" cellpadding=\"0\" align=\"center\">\n<tbody>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\"><b>POLIGONO REGOLARE<\/b><\/td>\n<td style=\"text-align: center;\" align=\"center\" valign=\"top\" width=\"88\" height=\"20\"><em><b>n<\/b><\/em> lati<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\"><b><em>f<\/em><\/b>\u00a0 numero fisso<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Triangolo<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">3<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">0,289<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Quadrato<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">4<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">0,500<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Pentagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">5<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">0,688<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Esagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">6<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">0,866<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Ettagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">7<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">1,038<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Ottagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">8<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">1,207<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Ennagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">9<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">1,374<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"20\">Decagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">10<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">1,539<\/td>\n<\/tr>\n<tr>\n<td align=\"center\" valign=\"top\" width=\"100\" height=\"22\">Dodecagono<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"20\">12<\/td>\n<td align=\"center\" valign=\"top\" width=\"88\" height=\"22\">1,866<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center;\"><span style=\"text-decoration: underline;\">FORMULE PRINCIPALI<\/span><\/p>\n<p style=\"text-align: center;\"><em><strong>a<\/strong><\/em> = <em><strong>l<\/strong><\/em> \u00d7\u00a0<em><strong>f<\/strong><\/em><\/p>\n<p style=\"text-align: center;\"><em><strong>l<\/strong><\/em> = <em><strong>a<\/strong><\/em>\u00a0\/\u00a0<em><strong>f<\/strong><\/em><\/p>\n<p style=\"text-align: center;\">Perimetro:\u00a0<em><strong>2p<\/strong><\/em> = <em><b>n<\/b><\/em> \u00d7 <strong><em>l<\/em><\/strong><\/p>\n<p style=\"text-align: center;\">Area: \u00a0<em><strong>A<\/strong><\/em> = <em><strong>2p<\/strong><\/em> \u00d7 <em><strong>a\u00a0<\/strong><\/em>\/ 2<\/p>\n<p style=\"text-align: center;\"><a href=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/01\/Poligoni-Regolari.png\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-6217\" src=\"http:\/\/www.matematicaok.it\/wp-content\/uploads\/2016\/01\/Poligoni-Regolari.png\" alt=\"Poligoni Regolari\" width=\"700\" height=\"662\" srcset=\"https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/01\/Poligoni-Regolari.png 999w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/01\/Poligoni-Regolari-300x284.png 300w, https:\/\/www.matematicaok.com\/wp-content\/uploads\/2016\/01\/Poligoni-Regolari-768x726.png 768w\" sizes=\"auto, (max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un poligono con n\u00a0lati \u00e8 detto\u00a0regolare se tutti i suoi angoli interni e tutti i suoi lati\u00a0sono congruenti. Indichiamo con l\u00a0 la misura del lato e con a\u00a0l\u2019apotema\u00a0quale\u00a0segmento perpendicolare a un lato del poligono e che ha come estremo il centro del poligono stesso. Il rapporto \u00a0a\u00a0\/ l\u00a0= \u00a0f\u00a0 \u00a0\u00e8 chiamato numero fisso del poligono regolare &nbsp; POLIGONO REGOLARE n lati f\u00a0 numero fisso Triangolo 3 0,289 Quadrato 4 0,500&hellip; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false},"version":2}},"categories":[193,233],"tags":[],"class_list":["post-6207","post","type-post","status-publish","format-standard","hentry","category-geometria-piana","category-esagono"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p85Wmq-1C7","_links":{"self":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/6207","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6207"}],"version-history":[{"count":7,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/6207\/revisions"}],"predecessor-version":[{"id":6278,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=\/wp\/v2\/posts\/6207\/revisions\/6278"}],"wp:attachment":[{"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6207"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6207"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.matematicaok.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6207"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}