{"id":274,"date":"2022-04-13T04:43:47","date_gmt":"2022-04-13T04:43:47","guid":{"rendered":"http:\/\/8thclass.deltapublications.in\/?page_id=274"},"modified":"2024-11-21T09:06:19","modified_gmt":"2024-11-21T09:06:19","slug":"o-1-identify-and-classify-polygons","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/o-1-identify-and-classify-polygons\/","title":{"rendered":"O.1 Identify and classify polygons"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong> Identify and classify polygons<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-embed is-type-rich is-provider-embed-handler wp-block-embed-embed-handler\"><div class=\"wp-block-embed__wrapper\">\n<div style=\"width: 620px;\" class=\"wp-video\"><!--[if lt IE 9]><script>document.createElement('video');<\/script><![endif]-->\n<video class=\"wp-video-shortcode\" id=\"video-274-1\" width=\"620\" height=\"349\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/video_20230314_153734_edit.mp4?_=1\" \/><a href=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/video_20230314_153734_edit.mp4\">https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/video_20230314_153734_edit.mp4<\/a><\/video><\/div>\n<\/div><\/figure>\n\n\n\n<p class=\"has-text-color has-link-color has-huge-font-size wp-elements-4d4696560822e7cb72ec4be90d4370b1\" style=\"color:#74008b\">Key Notes:<\/p>\n\n\n\n<p class=\"has-primary-color has-text-color has-huge-font-size\"><strong>Polygon<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\">A&nbsp;polygon is a closed figure with straight sides.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"435\" height=\"131\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-2.png\" alt=\"\" class=\"wp-image-7038\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-2.png 435w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-2-300x90.png 300w\" sizes=\"auto, (max-width: 435px) 100vw, 435px\" \/><\/figure><\/div>\n\n\n<p class=\"has-primary-color has-text-color has-huge-font-size\"><strong>Regular polygons<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\">A&nbsp;<strong>regular&nbsp;polygon<\/strong>&nbsp;has all equal side lengths and all equal angle measures. <\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"549\" height=\"276\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-4.png\" alt=\"\" class=\"wp-image-7041\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-4.png 549w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-4-300x151.png 300w\" sizes=\"auto, (max-width: 549px) 100vw, 549px\" \/><\/figure><\/div>\n\n\n<p class=\"has-primary-color has-text-color has-large-font-size\"><strong>Irregular<\/strong><\/p>\n\n\n\n<p class=\"has-large-font-size\">If the sides or angles of a polygon are not equal, the polygon is&nbsp;<strong>irregular<\/strong>.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"477\" height=\"268\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-5.png\" alt=\"\" class=\"wp-image-7042\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-5.png 477w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-5-300x169.png 300w\" sizes=\"auto, (max-width: 477px) 100vw, 477px\" \/><\/figure><\/div>\n\n\n<p class=\"has-large-font-size\">Compare&nbsp;these two hexagons. The first one is a regular polygon. It has equal side lengths and equal angles. The second one is not a regular&nbsp;polygon.<\/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-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"101\" height=\"115\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image.png\" alt=\"\" class=\"wp-image-7025\" style=\"width:215px;height:auto\"\/><\/figure><\/div><\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\"><div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"84\" height=\"115\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/image-1.png\" alt=\"\" class=\"wp-image-7027\" style=\"width:192px;height:auto\"\/><\/figure><\/div><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-group has-background-color has-text-color has-background has-link-color wp-elements-1651803c7bc76e7f8ec2767c627cbfb0\" style=\"background-color:#7f0c82\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<p class=\"has-text-color has-large-font-size\" style=\"color:#d1f6f6\">\ud83d\udd34Some&nbsp;regular polygons have special names based on their number of&nbsp;sides.<\/p>\n\n\n\n<p class=\"has-large-font-size\">An&nbsp;<strong>equilateral triangle<\/strong> is a regular polygon with three&nbsp;sides.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.ixl.com\/~media\/1\/eFmvsC8ik-tofD7RnlMA3nScoHDnQYO4Gx7GcWU-asRxJDLf0oevjFlsq0F62g43-zH2SQwfN4r-d-mAv4Pas7a06tZIpET0e-avMzqRrz0.svg\" alt=\"An equilateral triangle is shown. The side lengths are labeled 6. The angles are marked as congruent.\" style=\"width:191px;height:auto\"\/><\/figure><\/div>\n\n\n<p class=\"has-large-font-size\">A&nbsp;<strong>square <\/strong>is a regular polygon with four&nbsp;sides.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.ixl.com\/~media\/1\/qSEvbUonfiUYQ7BbDMlrkySIlvmgR-Ca6mKGcLD5qm8BMDjKxwZ-fapa8y6VKsRo6IdhGZl0fW0DKMUErJ3HOZ4Z-W4uJjCC-pLV9lFChV8.svg\" alt=\"A square is shown. The side lengths are labeled 5. The angles have right angle makers.\" style=\"width:250px;height:auto\"\/><\/figure><\/div>\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"512\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-1024x512.png\" alt=\"\" class=\"wp-image-7035\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-1024x512.png 1024w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-300x150.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-768x384.png 768w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-1536x768.png 1536w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons-1568x784.png 1568w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/03\/Types-of-Polygons.png 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background-color has-text-color has-background has-link-color wp-elements-1421b2fd522c5c349d4aaad56453934a\" style=\"background-color:#0e6a00\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading has-text-color\" id=\"yui_3_18_1_1_1678274944351_430\" style=\"color:#b8fff8\">But&nbsp;be&nbsp;careful!<\/h2>\n\n\n\n<p class=\"has-large-font-size\">Some&nbsp;polygons have equal side lengths or equal angles but not both. These polygons are&nbsp;irregular.<\/p>\n\n\n\n<p class=\"has-large-font-size\">A&nbsp;rhombus has four equal side lengths. It does not necessarily have four equal angles. For example, this rhombus is irregular. It has two obtuse angles and two acute&nbsp;angles.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.ixl.com\/~media\/1\/ZfHi_NVNaKF24JVXZ6bOPMz3P8x-JmH4-MtUbm_py5OaDiiIadLRUwL5SQSghqBSRs5Kx_Uy1eeVuv62LKWjzEkB7BBldOmD56soFRwHrpA.svg\" alt=\"A rhombus is shown. The side lengths are labeled 4. The rhombus has two obtuse angles and two acute angles.\" style=\"width:251px;height:auto\"\/><\/figure><\/div>\n\n\n<p class=\"has-large-font-size\">A&nbsp;rectangle has four equal angles. It does not necessarily have equal side lengths. For example, this rectangle is irregular. It has two sides that are 7 units and two sides that are 3&nbsp;units.<\/p>\n\n\n<div class=\"wp-block-image is-resized\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.ixl.com\/~media\/1\/TmkO_9o6NK6M_jifTfPMjDMLvfcUhVgm_SyQlv-Zz6mLbZfgTux1uVpXbbkIgqbdwNFpZL89eLsG7ifzghbiiqbMZRvC3X3LvcJXgV_mIOg.svg\" alt=\"A rectangle is shown. Two of the side lengths are labeled 3 and two of the side lengths are labeled 7. The angles have right angle markers.\" style=\"width:346px;height:auto\"\/><\/figure><\/div><\/div><\/div>\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-color has-text-color has-background has-link-color has-large-font-size wp-elements-bf224903ea34ecb16707f4f2e9e8d26e\" style=\"background-color:#086d8c\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\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-background-background-color has-text-color has-background has-link-color wp-elements-43c6b5e791b479ba3d0ccf7a31d96301\" style=\"color:#b00012\">\ud83d\udd25<strong>How many sides does an octagon have?<\/strong><\/p>\n\n\n\n<p>This is an octagon:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"80\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/image-2.png\" alt=\"\" class=\"wp-image-10427\"\/><\/figure>\n\n\n\n<p>An octagon has eight sides.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background-color has-text-color has-background has-link-color has-large-font-size wp-elements-86e28530d9a62eaf9e7d6205acab1c44\" style=\"background-color:#0d7d00\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\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-background-background-color has-text-color has-background has-link-color wp-elements-3ce8bc4bd163c233bf0b5e33e11675ea\" style=\"color:#b00012\"><strong>\ud83d\udd25How many sides does an octagon have?<\/strong><\/p>\n\n\n\n<p>This is an octagon:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"80\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/image-3.png\" alt=\"\" class=\"wp-image-10431\"\/><\/figure>\n\n\n\n<p>An octagon has eight sides.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background-color has-text-color has-background has-link-color has-large-font-size wp-elements-fa17aceccfc75f00922d9ca4d1fc7b90\" style=\"background-color:#2f0081\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\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-background-background-color has-text-color has-background has-link-color wp-elements-e23757466bb877deb79eeab01da00148\" style=\"color:#b00012\">\ud83d\udd25<strong>How many sides does a hexagon have?<\/strong><\/p>\n\n\n\n<p>This is a hexagon:<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"80\" height=\"80\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/06\/image-4.png\" alt=\"\" class=\"wp-image-10434\"\/><\/figure>\n\n\n\n<p>A hexagon has six sides.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading has-text-color has-large-font-size\" id=\"yui_3_18_1_1_1678274944351_485\" style=\"color:#d90000\">let&#8217;s practise: <\/h3>\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\/54021\/947\/318\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"http:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-2-1.png\" alt=\"\" class=\"wp-image-7015\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-2-1.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-2-1-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-2-1-150x150.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\/82395\/111\/142\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"http:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-1-1-1.png\" alt=\"\" class=\"wp-image-7016\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-1-1-1.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-1-1-1-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/02\/Worksheet-1-1-1-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Identify and classify polygons Key Notes: Polygon A&nbsp;polygon is a closed figure with straight sides. Regular polygons A&nbsp;regular&nbsp;polygon&nbsp;has all equal side lengths and all equal angle measures. Irregular If the sides or angles of a polygon are not equal, the polygon is&nbsp;irregular. Compare&nbsp;these two hexagons. The first one is a regular polygon. It has equal<a class=\"more-link\" href=\"https:\/\/8thclass.deltapublications.in\/index.php\/o-1-identify-and-classify-polygons\/\">Continue reading <span class=\"screen-reader-text\">&#8220;O.1 Identify and classify polygons&#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-274","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_hostinger_reach_plugin_has_subscription_block":false,"_hostinger_reach_plugin_is_elementor":false,"_links":{"self":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/274","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/comments?post=274"}],"version-history":[{"count":29,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/274\/revisions"}],"predecessor-version":[{"id":18642,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/274\/revisions\/18642"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=274"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}