{"id":2272,"date":"2026-02-23T12:32:39","date_gmt":"2026-02-23T12:32:39","guid":{"rendered":"https:\/\/pausemaths.fr\/?p=2272"},"modified":"2026-03-09T07:52:44","modified_gmt":"2026-03-09T07:52:44","slug":"construction-de-triangles","status":"publish","type":"post","link":"https:\/\/pausemaths.fr\/index.php\/2026\/02\/23\/construction-de-triangles\/","title":{"rendered":"Constructions de triangles (2)"},"content":{"rendered":"\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-wide is-style-wide--1\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Les trois cas possibles<\/strong><\/h2>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background\"\/>\n\n\n\n<div data-wp-context=\"{ &quot;autoclose&quot;: false, &quot;accordionItems&quot;: [] }\" data-wp-interactive=\"core\/accordion\" role=\"group\" class=\"wp-block-accordion is-layout-flow wp-block-accordion-is-layout-flow\">\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-2&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-2-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-2\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">A- Connaissant trois longueurs<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-2\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-2-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p><strong>Exemple :<br><\/strong>Pour construire un triangle KLM tel que KL= 6 cm, LM = 5 cm et<br>KM = 4,5 cm, on peut suivre les \u00e9tapes suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"320\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-22-1024x320.png\" alt=\"\" class=\"wp-image-2559\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-22-1024x320.png 1024w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-22-300x94.png 300w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-22-768x240.png 768w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-22.png 1115w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-3&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-3-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-3\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">B- Connaissant deux longueurs et un angle<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-3\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-3-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"has-large-font-size\"><strong>Exemple :<\/strong><br>Supposons que l&rsquo;on veut tracer un triangle dont la mesure d&rsquo;un c\u00f4t\u00e9 est de&nbsp;5 cm, l&rsquo;autre de 3,5 cm et qu&rsquo;ils forment un angle de 65\u00b0, on peut suivre les \u00e9tapes suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"457\" height=\"283\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-20.png\" alt=\"\" class=\"has-border-color has-accent-3-border-color wp-image-2532\" style=\"width:250px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-20.png 457w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-20-300x186.png 300w\" sizes=\"auto, (max-width: 457px) 100vw, 457px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"718\" height=\"558\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-16.png\" alt=\"\" class=\"wp-image-2522\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-16.png 718w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-16-300x233.png 300w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">\u00c0 l&rsquo;aide de la r\u00e8gle,<br>tracer un segment de droite<br>dont la mesure correspond \u00e0 celle d&rsquo;un c\u00f4t\u00e9 connu du triangle.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"717\" height=\"555\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-17.png\" alt=\"\" class=\"wp-image-2523\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-17.png 717w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-17-300x232.png 300w\" sizes=\"auto, (max-width: 717px) 100vw, 717px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">\u00c0 l&rsquo;aide du rapporteur,<br>tracer une demi-droite afin de dessiner&nbsp;l&rsquo;angle&nbsp;connu&nbsp;du triangle \u00e0 l&rsquo;une des extr\u00e9mit\u00e9s du segment.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"717\" height=\"553\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-18.png\" alt=\"\" class=\"wp-image-2526\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-18.png 717w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-18-300x231.png 300w\" sizes=\"auto, (max-width: 717px) 100vw, 717px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">\u00c0 l&rsquo;aide de la r\u00e8gle, tracer la mesure du deuxi\u00e8me segment du triangle sur la demi-droite trac\u00e9 \u00e0 l&rsquo;\u00e9tape 2.&nbsp;&nbsp;<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"718\" height=\"557\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-19.png\" alt=\"\" class=\"wp-image-2528\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-19.png 718w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-19-300x233.png 300w\" sizes=\"auto, (max-width: 718px) 100vw, 718px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">Rejoindre les extr\u00e9mit\u00e9s du premier et du deuxi\u00e8me segments \u00e0 l&rsquo;aide de la r\u00e8gle.<\/p>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n<\/div>\n<\/div>\n\n\n\n<div data-wp-class--is-open=\"state.isOpen\" data-wp-context=\"{ &quot;id&quot;: &quot;accordion-item-4&quot;, &quot;openByDefault&quot;: false }\" data-wp-init=\"callbacks.initAccordionItems\" data-wp-on-window--hashchange=\"callbacks.hashChange\" class=\"wp-block-accordion-item is-layout-flow wp-block-accordion-item-is-layout-flow\">\n<h3 class=\"wp-block-accordion-heading\"><button aria-expanded=\"false\" aria-controls=\"accordion-item-4-panel\" data-wp-bind--aria-expanded=\"state.isOpen\" data-wp-on--click=\"actions.toggle\" data-wp-on--keydown=\"actions.handleKeyDown\" id=\"accordion-item-4\" type=\"button\" class=\"wp-block-accordion-heading__toggle\"><span class=\"wp-block-accordion-heading__toggle-title\">C- Connaissant une longueur et deux angles<\/span><span class=\"wp-block-accordion-heading__toggle-icon\" aria-hidden=\"true\">+<\/span><\/button><\/h3>\n\n\n\n<div inert aria-labelledby=\"accordion-item-4\" data-wp-bind--inert=\"!state.isOpen\" id=\"accordion-item-4-panel\" role=\"region\" class=\"wp-block-accordion-panel is-layout-flow wp-block-accordion-panel-is-layout-flow\">\n<p class=\"has-large-font-size\"><strong>Exemple :<br><\/strong>Supposons que l&rsquo;on veut tracer un triangle dont la mesure d&rsquo;un c\u00f4t\u00e9 est de&nbsp;5cm&nbsp;et que les mesures de deux angles sont de&nbsp;30\u00b0&nbsp;et&nbsp;70\u00b0, on peut suivre les \u00e9tapes suivantes :<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"377\" height=\"196\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-21.png\" alt=\"\" class=\"has-border-color has-accent-3-border-color wp-image-2535\" style=\"width:300px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-21.png 377w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-21-300x156.png 300w\" sizes=\"auto, (max-width: 377px) 100vw, 377px\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"681\" height=\"494\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-12.png\" alt=\"\" class=\"wp-image-2504\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-12.png 681w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-12-300x218.png 300w\" sizes=\"auto, (max-width: 681px) 100vw, 681px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">\u00c0 l&rsquo;aide de la r\u00e8gle, tracer un segment de droite dont la mesure correspond \u00e0 celle du c\u00f4t\u00e9 connu du triangle.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"680\" height=\"492\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-13.png\" alt=\"\" class=\"wp-image-2505\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-13.png 680w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-13-300x217.png 300w\" sizes=\"auto, (max-width: 680px) 100vw, 680px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">\u00c0 l&rsquo;aide du rapporteur, dessiner un des angles connus du triangle \u00e0 l&rsquo;une des extr\u00e9mit\u00e9s du segment.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"678\" height=\"491\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-14.png\" alt=\"\" class=\"wp-image-2508\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-14.png 678w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-14-300x217.png 300w\" sizes=\"auto, (max-width: 678px) 100vw, 678px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">Toujours \u00e0 l&rsquo;aide du rapporteur, dessiner l&rsquo;autre angle connu <br>\u00e0 l&rsquo;autre extr\u00e9mit\u00e9 du segment. <\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-top:var(--wp--preset--spacing--20);padding-right:var(--wp--preset--spacing--20);padding-bottom:var(--wp--preset--spacing--20);padding-left:var(--wp--preset--spacing--20)\">\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"679\" height=\"492\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-15.png\" alt=\"\" class=\"wp-image-2510\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-15.png 679w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-15-300x217.png 300w\" sizes=\"auto, (max-width: 679px) 100vw, 679px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center has-medium-font-size\">Le point d&rsquo;intersection des demi-droites correspond au troisi\u00e8me sommet du triangle.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Niveau 1<\/strong> <\/h2>\n\n\n\n<p class=\"has-text-align-left\">Construis en vraie grandeur les triangles suivant trac\u00e9s \u00e0 main lev\u00e9e.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"border-width:1px;flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"620\" height=\"417\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-23.png\" alt=\"\" class=\"wp-image-2573\" style=\"width:250px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-23.png 620w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-23-300x202.png 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"border-width:1px;flex-basis:50%\">\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"489\" height=\"677\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-24-edited-1.png\" alt=\"\" class=\"wp-image-2584\" style=\"width:auto;height:250px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-24-edited-1.png 489w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-24-edited-1-217x300.png 217w\" sizes=\"auto, (max-width: 489px) 100vw, 489px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"381\" height=\"765\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-25-edited-1.png\" alt=\"\" class=\"has-border-color has-accent-3-border-color wp-image-2587\" style=\"border-width:1px;width:auto;height:300px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-25-edited-1.png 381w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-25-edited-1-149x300.png 149w\" sizes=\"auto, (max-width: 381px) 100vw, 381px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image aligncenter size-full is-resized has-custom-border\"><img loading=\"lazy\" decoding=\"async\" width=\"466\" height=\"738\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-26-edited-1.png\" alt=\"\" class=\"has-border-color has-accent-3-border-color wp-image-2585\" style=\"border-width:1px;width:auto;height:300px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-26-edited-1.png 466w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/image-26-edited-1-189x300.png 189w\" sizes=\"auto, (max-width: 466px) 100vw, 466px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center has-border-color has-accent-3-border-color is-layout-flow wp-block-column-is-layout-flow\" style=\"border-width:1px\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"545\" height=\"682\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-27.png\" alt=\"\" class=\"wp-image-2589\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-27.png 545w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-27-240x300.png 240w\" sizes=\"auto, (max-width: 545px) 100vw, 545px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-default\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong> Niveau 2<\/strong> <\/h2>\n\n\n\n<p class=\"has-text-align-left\">Reproduis ces triangles, lorsque cela est possible. Attention : Tous ces triangles ne sont pas constructibles.<br>Si un triangle n\u2019est pas constructible, explique pourquoi. ( Penser \u00e0 l&rsquo;in\u00e9galit\u00e9 triangulaire ou \u00e0 la somme des angles d&rsquo;un triangle ).<\/p>\n\n\n\n<figure class=\"wp-block-image size-full has-custom-border\" style=\"margin-top:var(--wp--preset--spacing--20);margin-right:var(--wp--preset--spacing--20);margin-bottom:var(--wp--preset--spacing--20);margin-left:var(--wp--preset--spacing--20)\"><img loading=\"lazy\" decoding=\"async\" width=\"803\" height=\"600\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-28.png\" alt=\"\" class=\"has-border-color has-accent-3-border-color wp-image-2633\" style=\"border-width:1px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-28.png 803w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-28-300x224.png 300w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-28-768x574.png 768w\" sizes=\"auto, (max-width: 803px) 100vw, 803px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Niveau 3<\/strong><\/h2>\n\n\n\n<p>Pour chaque triangle, \u00e0 partir du texte, trace d\u2019abord une figure \u00e0 main lev\u00e9e en codant les informations qui te sont donn\u00e9es, puis trace une autre figure en vraie grandeur.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li> Le triangle ABC tel que : AB = 3,5 cm, BC = 5 cm et AC = 6 cm.<\/li>\n\n\n\n<li>Le triangle HTU tel que : THU = 100\u00b0, HT = 5 cm et HU = 2 cm.<\/li>\n\n\n\n<li>Le triangle GKO tel que : GK = 5,5 cm, GKO = 45\u00b0 et KGO = 35\u00b0.<\/li>\n\n\n\n<li>Le triangle LMN tel que : NLM = 49\u00b0, LM = 6 cm et LN = 3 cm.<\/li>\n\n\n\n<li>Un triangle PRS tel que : PSR = 124\u00b0, SPR = 18\u00b0 et SP = 5,5 cm.<br><\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-default\"\/>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\"><strong>Niveau 4 :<\/strong><\/h2>\n\n\n\n<p><strong>Probl\u00e8me 1 : Au t\u00e9l\u00e9phone<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pour la figure ci-dessous, \u00e9cris le programme de construction, tel que tu le dirais \u00e0 un quelqu&rsquo;un au t\u00e9l\u00e9phone.<\/li>\n\n\n\n<li>Puis demande \u00e0 un de tes camarades de la classe de reproduire la figure \u00e0 partir de tes instructions.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"721\" height=\"578\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-29.png\" alt=\"\" class=\"wp-image-2651\" style=\"width:350px\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-29.png 721w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-29-300x240.png 300w\" sizes=\"auto, (max-width: 721px) 100vw, 721px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<p><strong>Probl\u00e8me n\u00b02 :<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"655\" height=\"398\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-30.png\" alt=\"\" class=\"wp-image-2658\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-30.png 655w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-30-300x182.png 300w\" sizes=\"auto, (max-width: 655px) 100vw, 655px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<p>Probl\u00e8me n\u00b03<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"560\" src=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-31.png\" alt=\"\" class=\"wp-image-2661\" srcset=\"https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-31.png 638w, https:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-31-300x263.png 300w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background\"\/>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-28f84493 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:67%\">\n<p class=\"has-text-align-center\">Fiche d&rsquo;exercices<br>Fiche probl\u00e8mes<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33%\">\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"82\" src=\"http:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/02\/image-6.png\" alt=\"\" class=\"wp-image-2190\"\/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-dots\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-wide is-style-wide--5\"\/>\n\n\n\n<p><a href=\"http:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/cahier_2024_5e_G17_s3.pdf\">Fiche d&rsquo;ercice<\/a><\/p>\n\n\n\n<p><a href=\"http:\/\/pausemaths.fr\/wp-content\/uploads\/2026\/03\/chasse_au_tresor.pdf\">Carte au tr\u00e9sor<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-wide is-style-wide--6\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-wide is-style-wide--7\"\/>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-contrast-color has-alpha-channel-opacity has-contrast-background-color has-background is-style-wide is-style-wide--8\"\/>\n","protected":false},"excerpt":{"rendered":"<p>Les trois cas possibles Niveau 1 Construis en vraie grandeur les triangles suivant trac\u00e9s \u00e0 main lev\u00e9e. Niveau 2 Reproduis ces triangles, lorsque cela est possible. Attention : Tous ces triangles ne sont pas constructibles.Si un triangle n\u2019est pas constructible, explique pourquoi. ( Penser \u00e0 l&rsquo;in\u00e9galit\u00e9 triangulaire ou \u00e0 la somme des angles d&rsquo;un triangle [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2272","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/posts\/2272","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/comments?post=2272"}],"version-history":[{"count":154,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/posts\/2272\/revisions"}],"predecessor-version":[{"id":2662,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/posts\/2272\/revisions\/2662"}],"wp:attachment":[{"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/media?parent=2272"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/categories?post=2272"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pausemaths.fr\/index.php\/wp-json\/wp\/v2\/tags?post=2272"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}