{"id":290,"date":"2022-04-13T04:46:05","date_gmt":"2022-04-13T04:46:05","guid":{"rendered":"http:\/\/8thclass.deltapublications.in\/?page_id=290"},"modified":"2024-11-22T11:02:49","modified_gmt":"2024-11-22T11:02:49","slug":"o-9-find-missing-angles-in-triangles-and-quadrilaterals","status":"publish","type":"page","link":"https:\/\/8thclass.deltapublications.in\/index.php\/o-9-find-missing-angles-in-triangles-and-quadrilaterals\/","title":{"rendered":"O.9 Find missing angles in triangles and quadrilaterals"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-text-align-center has-text-color\" style=\"color:#00056d;text-transform:uppercase\"><strong>Find missing angles in triangles and quadrilaterals<\/strong><\/h2>\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-large-font-size\">The sum of the angles in a triangle is always 180\u00b0.<\/p>\n\n\n\n<p class=\"has-text-align-center has-text-color has-link-color has-large-font-size wp-elements-3fefd20f8ce119a518e5f53333ab5486\" style=\"color:#105000\"><strong>Learn with an example<\/strong><\/p>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#bff1dc\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\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-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-a4d79491770f0ec0dfe604c0df9f35c2\" style=\"color:#b00012\"><strong>What is the measure of the missing angle?&#8212;&#8211;<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-20-1.png\" alt=\"\" class=\"wp-image-5020\" style=\"width:295px;height:295px\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-20-1.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-20-1-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-20-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<p>The sum of the three angles must be 180\u00b0. The two angles you know measure 130\u00b0 and 25\u00b0.<\/p>\n\n\n\n<p>Write an equation and find the measure of the unknown angle.<\/p>\n\n\n\n<p>130\u00b0 +25\u00b0+?=180\u00b0<\/p>\n\n\n\n<p>155\u00b0+?=180\u00b0<\/p>\n\n\n\n<p>?=180\u00b0-155\u00b0<\/p>\n\n\n\n<p>?=25\u00b0<\/p>\n\n\n\n<p>The measure of the missing angle is 25\u00b0.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#dcebd8\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\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-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-075f9b95f448add9ed01a3edd13c981a\" style=\"color:#b00012\"><strong>What is the measure of the missing angle?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-21-1.png\" alt=\"\" class=\"wp-image-5025\" style=\"width:316px;height:316px\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-21-1.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-21-1-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-21-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<p>The sum of the four angles must be 360\u00b0. The three angles you know measure 61\u00b0, 84\u00b0, and 123\u00b0.<\/p>\n\n\n\n<p>Write an equation and find the measure of the unknown angle.<\/p>\n\n\n\n<p>61\u00b0 +84\u00b0+123\u00b0+?=360\u00b0<\/p>\n\n\n\n<p>268\u00b0+?=360\u00b0<\/p>\n\n\n\n<p>?=360\u00b0-268\u00b0<\/p>\n\n\n\n<p>?=92\u00b0<\/p>\n\n\n\n<p>The measure of the missing angle is 92\u00b0.<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group has-background\" style=\"background-color:#c7d3f9\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\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-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-075f9b95f448add9ed01a3edd13c981a\" style=\"color:#b00012\"><strong>What is the measure of the missing angle?<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-22-1.png\" alt=\"\" class=\"wp-image-5028\" style=\"width:317px;height:317px\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-22-1.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-22-1-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/01\/Untitled-design-22-1-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/figure>\n<\/div><\/div>\n\n\n\n<p>The sum of the four angles must be 360\u00b0. The three angles you know measure 84\u00b0, 146\u00b0, and 63\u00b0.<\/p>\n\n\n\n<p>Write an equation and find the measure of the unknown angle.<\/p>\n\n\n\n<p>84\u00b0 +146\u00b0+63\u00b0+?=360\u00b0<\/p>\n\n\n\n<p>293\u00b0+?=360\u00b0<\/p>\n\n\n\n<p>?=360\u00b0-293\u00b0<\/p>\n\n\n\n<p>?=67\u00b0<\/p>\n\n\n\n<p>The measure of the missing angle is 67\u00b0.<\/p>\n<\/div><\/div>\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\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\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-41.png\" alt=\"\" class=\"wp-image-8561\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-41.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-41-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-3-41-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/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\/82476\/951\/387\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"500\" src=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-41.png\" alt=\"\" class=\"wp-image-8562\" srcset=\"https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-41.png 500w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-41-300x300.png 300w, https:\/\/8thclass.deltapublications.in\/wp-content\/uploads\/2023\/05\/Worksheet-1-1-2-41-150x150.png 150w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Find missing angles in triangles and quadrilaterals Key Notes: The sum of the angles in a triangle is always 180\u00b0. Learn with an example What is the measure of the missing angle?&#8212;&#8211; The sum of the three angles must be 180\u00b0. The two angles you know measure 130\u00b0 and 25\u00b0. Write an equation and find<a class=\"more-link\" href=\"https:\/\/8thclass.deltapublications.in\/index.php\/o-9-find-missing-angles-in-triangles-and-quadrilaterals\/\">Continue reading <span class=\"screen-reader-text\">&#8220;O.9 Find missing angles in triangles and quadrilaterals&#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-290","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\/290","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=290"}],"version-history":[{"count":13,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/290\/revisions"}],"predecessor-version":[{"id":18710,"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/pages\/290\/revisions\/18710"}],"wp:attachment":[{"href":"https:\/\/8thclass.deltapublications.in\/index.php\/wp-json\/wp\/v2\/media?parent=290"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}