{"id":267,"date":"2022-04-12T05:27:36","date_gmt":"2022-04-12T05:27:36","guid":{"rendered":"http:\/\/4thclass.deltapublications.in\/?page_id=267"},"modified":"2025-04-12T04:49:07","modified_gmt":"2025-04-12T04:49:07","slug":"m-9-rotational-symmetry","status":"publish","type":"page","link":"https:\/\/4thclass.deltapublications.in\/index.php\/m-9-rotational-symmetry\/","title":{"rendered":"M.9 Rotational symmetry"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"> <strong>Rotational symmetry<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-f79afd6ea8b322268468366b8e5f7cc7\" style=\"color:#74008b\"><strong>Key Notes:<\/strong><\/p>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-90dfb399c093c8ff2e973f01d5c158c9\" style=\"color:#000060\"><strong>What is Rotational Symmetry?<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>A shape has <strong>rotational symmetry<\/strong> if it <strong>looks the same after being turned<\/strong> (rotated) around a center point.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-6c28a255fcc0dc208d790be401bb9169\" style=\"color:#000060\"><strong>Center of Rotation:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>This is the <strong>fixed point<\/strong> around which the shape is rotated.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-78a7e335bd761eeda1d98b36c06a9ee9\" style=\"color:#000060\"><strong>Angle of Rotation:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>The number of degrees a shape is turned. Common angles are <strong>90\u00b0, 180\u00b0, 270\u00b0,<\/strong> and <strong>360\u00b0<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-759f4061c8a495ebd401d74d9c2331b6\" style=\"color:#000060\"><strong>Order of Rotational Symmetry:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>The number of times a shape fits onto itself in one full turn (360\u00b0).<\/li>\n\n\n\n<li>\ud83d\udc49 Example: A square has <strong>order 4<\/strong> rotational symmetry.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-de03968f35c6d4042a70e62103eafb57\" style=\"color:#000060\"><strong>Examples of Rotational Symmetry:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Circle<\/strong> \u2013 infinite rotational symmetry<\/li>\n\n\n\n<li><strong>Square<\/strong> \u2013 order 4<\/li>\n\n\n\n<li><strong>Equilateral triangle<\/strong> \u2013 order 3<\/li>\n\n\n\n<li><strong>Rectangle<\/strong> \u2013 order 2<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-96faad2fa32d55dd83fbe36a380bb6e4\" style=\"color:#000060\"><strong>No Rotational Symmetry:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Some shapes only match their original position after a <strong>360\u00b0 turn<\/strong>. These shapes have <strong>no rotational symmetry<\/strong> or <strong>order 1<\/strong>.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-2357b7f6f0fc6781bd117fdecb7ddf32\" style=\"color:#000060\"><strong>Real-Life Examples:<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Steering wheel<\/strong>, <strong>fan blades<\/strong>, <strong>flowers<\/strong>, and <strong>spinning tops<\/strong> often show rotational symmetry.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-color has-link-color has-large-font-size wp-elements-62f915acb19721113feb51beaf753d8f\" style=\"color:#000060\"><strong>Why is it important?<\/strong><\/p>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>Helps in understanding <strong>geometry, art, design<\/strong>, and <strong>patterns<\/strong> in the real world.<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-group has-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-align-center has-text-color has-large-font-size\" style=\"color:#105000\"><strong>Learn with an example<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#f7e1f9\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-link-color wp-elements-7c9aefecce79f2d0d7fa8cb801e7c44e\" style=\"color:#b00012\">\ud83c\udfaf<strong> Does this picture have rotational symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-16.png\" alt=\"\" class=\"wp-image-4552\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-16.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-16-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>yes<\/li>\n\n\n\n<li>no<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>If you rotate this picture 1\/2 turn or less, it will not look exactly the same.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-17.png\" alt=\"\" class=\"wp-image-4553\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-17.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-17-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<p>This picture does not have rotational symmetry.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#dbdcf9\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-link-color wp-elements-990686f52dd6b32d4f0be5def86d7fb1\" style=\"color:#b00012\">\ud83c\udfaf <strong>Does this picture have rotational symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-18.png\" alt=\"\" class=\"wp-image-4554\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-18.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-18-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>yes<\/li>\n\n\n\n<li>no<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>If you rotate this picture 1\/2 turn or less, it will not look exactly the same.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-19.png\" alt=\"\" class=\"wp-image-4555\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-19.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-19-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<p>This picture does not have rotational symmetry.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#f0fbcc\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-background-background-color has-background\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-link-color wp-elements-990686f52dd6b32d4f0be5def86d7fb1\" style=\"color:#b00012\">\ud83c\udfaf <strong>Does this picture have rotational symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-20.png\" alt=\"\" class=\"wp-image-4556\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-20.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-20-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<ul class=\"wp-block-list\">\n<li>yes<\/li>\n\n\n\n<li>no<\/li>\n<\/ul>\n<\/div><\/div>\n\n\n\n<p>If you rotate this picture 1\/2 turn or less, it will not look exactly the same.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"200\" height=\"200\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-21.png\" alt=\"\" class=\"wp-image-4557\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-21.png 200w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/image-21-150x150.png 150w\" sizes=\"auto, (max-width: 200px) 100vw, 200px\" \/><\/figure><\/div>\n\n\n<p>This picture does not have rotational symmetry.<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\">let&#8217;s practice!<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 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 size-full\"><a href=\"https:\/\/wordwall.net\/play\/90326\/759\/619\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-3-3.png\" alt=\"\" class=\"wp-image-7922\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-3-3.png 500w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-3-3-300x300.png 300w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-3-3-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/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 size-full\"><a href=\"https:\/\/wordwall.net\/play\/85398\/391\/627\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-1-2-2.png\" alt=\"\" class=\"wp-image-7923\" srcset=\"https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-1-2-2.png 500w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-1-2-2-300x300.png 300w, https:\/\/4thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/Worksheet-1-1-2-2-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Rotational symmetry Key Notes: What is Rotational Symmetry? Center of Rotation: Angle of Rotation: Order of Rotational Symmetry: Examples of Rotational Symmetry: No Rotational Symmetry: Real-Life Examples: Why is it important? Learn with an example \ud83c\udfaf Does this picture have rotational symmetry? If you rotate this picture 1\/2 turn or less, it will not look<a class=\"more-link\" href=\"https:\/\/4thclass.deltapublications.in\/index.php\/m-9-rotational-symmetry\/\">Continue reading <span class=\"screen-reader-text\">&#8220;M.9 Rotational symmetry&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-267","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/267","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=267"}],"version-history":[{"count":14,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/267\/revisions"}],"predecessor-version":[{"id":14991,"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/267\/revisions\/14991"}],"wp:attachment":[{"href":"https:\/\/4thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=267"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}