{"id":245,"date":"2022-04-13T10:27:03","date_gmt":"2022-04-13T10:27:03","guid":{"rendered":"http:\/\/10thclass.deltapublications.in\/?page_id=245"},"modified":"2025-02-08T11:34:18","modified_gmt":"2025-02-08T11:34:18","slug":"m-2-perimeter","status":"publish","type":"page","link":"https:\/\/10thclass.deltapublications.in\/index.php\/m-2-perimeter\/","title":{"rendered":"M.2 Perimeter"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong> Perimeter<\/strong><\/h2>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-8550df6181cd5d83aa7a08ef336a4ca1\" style=\"color:#74008b\">Key Notes :<\/p>\n\n\n\n<p class=\"has-large-font-size\">The&nbsp;perimeter of a shape is the distance around the outside of the shape. Find the perimeter by adding the lengths of the&nbsp;sides.<\/p>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li><strong>Definition<\/strong>: Perimeter is the total length of the boundary of a two-dimensional shape.<\/li>\n\n\n\n<li><strong>Importance:<\/strong> It helps us measure and understand the outer boundaries of various figures.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-large-font-size\"><strong>I. Basic Concepts of Perimeter:<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\"> <strong>A. Calculation:<\/strong> Sum of all the sides of a shape. <\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>B. Units:<\/strong> Perimeter is measured in the same units as the length of the sides (e.g., centimeters, meters, etc.).<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>II. Perimeter of Common Shapes: <\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>A. Rectangles and Squares: <\/strong>1. Formula: P = 2(l + w) for rectangles, P = 4s for squares. 2. Explanation: Add up the lengths of all four sides.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>B. Triangles:<\/strong> 1. Formula: P = a + b + c (sum of all three sides). 2. Explanation: Combine the lengths of the three sides.<\/p>\n\n\n\n<p class=\"has-large-font-size\"><strong>C. Circles: <\/strong>1. Formula: P = 2\u03c0r or \u03c0d (circumference). 2. Explanation: Involves the concept of radius (r) or diameter (d).<\/p>\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-background has-large-font-size\" style=\"background-color:#c7e5f9\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-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 has-link-color wp-elements-ab3df749d58a49deb02eddbba2bfb537\" style=\"color:#b00012\"><strong>What is the Perimeter ?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-28-1.png\" alt=\"\" class=\"wp-image-11070\" style=\"width:340px;height:auto\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-28-1.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-28-1-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-28-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<p>________Kilometers<\/p>\n<\/div><\/div>\n\n\n\n<p>Look&nbsp;at the shape and find the length of each side. Add the&nbsp;lengths:<\/p>\n\n\n\n<p>12+12+12=36<\/p>\n\n\n\n<p>Now&nbsp;find the units. The lengths are measured in kilometres, so the perimeter is also measured in&nbsp;kilometres.<\/p>\n\n\n\n<p>The&nbsp;perimeter is&nbsp;36&nbsp;kilometres.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#c9f3d0\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-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 has-link-color wp-elements-6c53f00eda58bebfad8653df1c0fabf4\" style=\"color:#b00012\"><strong>What is the Perimeter of this rectangle ?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-29.png\" alt=\"\" class=\"wp-image-11073\" style=\"width:342px;height:auto\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-29.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-29-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-29-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<p>_________centimeters <\/p>\n<\/div><\/div>\n\n\n\n<p>In&nbsp;a rectangle, opposite sides have the same length. Look at the rectangle and find the side lengths.&nbsp;add:<\/p>\n\n\n\n<p>5+4+5+4=18<\/p>\n\n\n\n<p>Now&nbsp;find the units. The lengths are measured in centimetres, so the perimeter is also measured in&nbsp;centimetres.<\/p>\n\n\n\n<p>The&nbsp;perimeter is&nbsp;18&nbsp;centimetres.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background has-large-font-size\" style=\"background-color:#ecbff7\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-group has-background-background-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 has-link-color wp-elements-ab3df749d58a49deb02eddbba2bfb537\" style=\"color:#b00012\"><strong>What is the Perimeter ?<\/strong><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-30.png\" alt=\"\" class=\"wp-image-11078\" style=\"width:338px;height:auto\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-30.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-30-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/12\/Untitled-design-30-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure><\/div>\n\n\n<p>_________centimeters <\/p>\n<\/div><\/div>\n\n\n\n<p>Look&nbsp;at the shape and find the length of each side. Add the&nbsp;lengths:<\/p>\n\n\n\n<p>20+16+12=48<\/p>\n\n\n\n<p>Now&nbsp;find the units. The lengths are measured in centimetres, so the perimeter is also measured in&nbsp;centimetres.<\/p>\n\n\n\n<p>The&nbsp;perimeter is&nbsp;48&nbsp;centimetres.<\/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!<\/strong><\/p>\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\/86347\/984\/116\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-74.png\" alt=\"\" class=\"wp-image-7054\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-74.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-74-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-74-150x150.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\/37936\/102\/427\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-92.png\" alt=\"\" class=\"wp-image-7055\" srcset=\"https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-92.png 500w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-92-300x300.png 300w, https:\/\/10thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-92-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Perimeter Key Notes : The&nbsp;perimeter of a shape is the distance around the outside of the shape. Find the perimeter by adding the lengths of the&nbsp;sides. I. Basic Concepts of Perimeter: A. Calculation: Sum of all the sides of a shape. B. Units: Perimeter is measured in the same units as the length of the<a class=\"more-link\" href=\"https:\/\/10thclass.deltapublications.in\/index.php\/m-2-perimeter\/\">Continue reading <span class=\"screen-reader-text\">&#8220;M.2 Perimeter&#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-245","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=245"}],"version-history":[{"count":16,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/245\/revisions"}],"predecessor-version":[{"id":17516,"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/245\/revisions\/17516"}],"wp:attachment":[{"href":"https:\/\/10thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}