{"id":395,"date":"2022-04-12T10:26:48","date_gmt":"2022-04-12T10:26:48","guid":{"rendered":"http:\/\/7thclass.deltapublications.in\/?page_id=395"},"modified":"2024-10-23T15:34:47","modified_gmt":"2024-10-23T15:34:47","slug":"r-18-symmetry","status":"publish","type":"page","link":"https:\/\/7thclass.deltapublications.in\/index.php\/r-18-symmetry\/","title":{"rendered":"R.18 Symmetry"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong> Symmetry<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#b00012\"><strong>Key notes : <\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-large-font-size\" style=\"color:#000060\">1. <strong>Definition of Symmetry<\/strong>:<\/h3>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Symmetry<\/strong> refers to a balanced and proportionate similarity found in two halves of an object, where one half mirrors the other.<\/li>\n\n\n\n<li>A figure is said to be symmetric if it can be divided into two identical parts.<\/li>\n<\/ul>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"168\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2024\/10\/image-41.png\" alt=\"\" class=\"wp-image-14578\" style=\"aspect-ratio:1.7857142857142858;width:406px;height:auto\"\/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading has-text-color has-large-font-size\" style=\"color:#000060\">2. <strong>Line of Symmetry<\/strong>:<\/h3>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li>A <strong>line of symmetry<\/strong> divides a figure into two identical halves.<\/li>\n\n\n\n<li>A shape can have more than one line of symmetry, depending on its structure.<\/li>\n\n\n\n<li>For example, a square has 4 lines of symmetry, while a rectangle has 2.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-large-font-size\" style=\"color:#000060\">3. <strong>Types of Symmetry<\/strong>:<\/h3>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Line Symmetry (Reflectional Symmetry)<\/strong>: A figure has line symmetry if one half is a mirror image of the other.<\/li>\n\n\n\n<li><strong>Rotational Symmetry<\/strong>: A figure has rotational symmetry if it looks the same after a certain amount of rotation (less than a full turn).\n<ul class=\"wp-block-list\">\n<li><strong>Order of Rotation<\/strong>: The number of times a shape looks the same during a full 360\u00b0 rotation. For example, an equilateral triangle has rotational symmetry of order 3.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-large-font-size\" style=\"color:#000060\">4. <strong>Examples of Symmetry in Geometry<\/strong>:<\/h3>\n\n\n\n<ul class=\"has-large-font-size wp-block-list\">\n<li><strong>Equilateral Triangle<\/strong>: Has 3 lines of symmetry and rotational symmetry of order 3.<\/li>\n\n\n\n<li><strong>Square<\/strong>: Has 4 lines of symmetry and rotational symmetry of order 4.<\/li>\n\n\n\n<li><strong>Circle<\/strong>: Infinite lines of symmetry and rotational symmetry of any angle.<\/li>\n<\/ul>\n\n\n\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-large-font-size\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-group has-primary-color has-text-color has-background\" style=\"background-color:#f9dbf4\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-primary-color has-background-background-color has-text-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color\" style=\"color:#b00012\">\ud83d\udd14 <strong>Is the dotted line a line of symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-4-10.png\" alt=\"\" class=\"wp-image-4930\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-4-10.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-4-10-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-4-10-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-4-10-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/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>Imagine folding this picture along the dotted line.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled_design__4_-removebg-preview-5.png\" alt=\"\" class=\"wp-image-4931\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled_design__4_-removebg-preview-5.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled_design__4_-removebg-preview-5-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled_design__4_-removebg-preview-5-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled_design__4_-removebg-preview-5-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<p>The two sides will not match up. The dotted line is not a line of symmetry.<\/p>\n\n\n\n<p>Now try folding along this dotted line instead. This dotted line is a line of symmetry.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/in.ixl.com\/~media\/1\/VAMjnIJ6BkrCtds7KnRSWOlnF1JiFDo89ajq1EHSSX_A48W1q9SEHi6IRrLiGph-CwkxjjTrWyMJV8O47l_Woi60FkuGQurwJeJoLnUOqjU.svg\" alt=\"\"\/><\/figure><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-text-color has-background\" style=\"background-color:#dafed0\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-primary-color has-background-background-color has-text-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color\" style=\"color:#b00012\">\ud83d\udd14 <strong>Is the dotted line a line of symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/in.ixl.com\/~media\/1\/tCcdPDnB1i7kyN0wr6Eks-ODQPQbvsuMUurlULt8We2b9ATqjG5SxzHJnkYatCHbmN3JIyyPlDnME3tgkPEvy09CfIRm6UpmUofBxWx-nFY.svg\" alt=\"\"\/><\/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>Imagine folding this picture along the dotted line.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/in.ixl.com\/~media\/1\/tCcdPDnB1i7kyN0wr6Eks-ODQPQbvsuMUurlULt8We2b9ATqjG5SxzHJnkYatCHbmN3JIyyPlDnME3tgkPEvy09CfIRm6UpmUofBxWx-nFY.svg\" alt=\"\"\/><\/figure><\/div>\n\n\n<p>The two sides will not match up. The dotted line is not a line of symmetry.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-primary-color has-text-color has-background\" style=\"background-color:#dae8fc\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-primary-color has-background-background-color has-text-color has-background\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<p class=\"has-text-color\" style=\"color:#b00012\">\ud83d\udd14 <strong>Is the dotted line a line of symmetry?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/in.ixl.com\/~media\/1\/TDdcxGQR6TsF0sgSmGjRD03YnL8x3icuG7x1sshzm2b3-OfB5bYggJ-NKX3VT2-RflONYC_XcbyWa8OmyBDBqRmz9gvOUELGgPqTZ6tv-Rs.svg\" alt=\"\"\/><\/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>Imagine folding this picture along the dotted line.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/in.ixl.com\/~media\/1\/TDdcxGQR6TsF0sgSmGjRD03YnL8x3icuG7x1sshzm2b3-OfB5bYggJ-NKX3VT2-RflONYC_XcbyWa8OmyBDBqRmz9gvOUELGgPqTZ6tv-Rs.svg\" alt=\"\"\/><\/figure><\/div>\n\n\n<p>The two sides will match up exactly. The dotted line is a line of symmetry.<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d90000\"><strong>Let&#8217;s practice!\ud83d\udd8a\ufe0f<\/strong><\/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\/79940\/444\/950\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-2-101.png\" alt=\"\" class=\"wp-image-6792\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-2-101.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-2-101-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-2-101-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-2-101-400x400.png 400w\" 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\/79949\/935\/552\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-1-102.png\" alt=\"\" class=\"wp-image-6793\" srcset=\"https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-1-102.png 500w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-1-102-300x300.png 300w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-1-102-150x150.png 150w, https:\/\/7thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-1-102-400x400.png 400w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Symmetry Key notes : 1. Definition of Symmetry: 2. Line of Symmetry: 3. Types of Symmetry: 4. Examples of Symmetry in Geometry: Learn with an example \ud83d\udd14 Is the dotted line a line of symmetry? Imagine folding this picture along the dotted line. The two sides will not match up. The dotted line is not<a class=\"more-link\" href=\"https:\/\/7thclass.deltapublications.in\/index.php\/r-18-symmetry\/\">Continue reading <span class=\"screen-reader-text\">&#8220;R.18 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,"footnotes":""},"class_list":["post-395","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/395","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=395"}],"version-history":[{"count":15,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/395\/revisions"}],"predecessor-version":[{"id":14579,"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/395\/revisions\/14579"}],"wp:attachment":[{"href":"https:\/\/7thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=395"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}