{"id":6568,"date":"2026-07-13T13:23:23","date_gmt":"2026-07-13T18:23:23","guid":{"rendered":"https:\/\/www.eastcentral.edu\/learning-center\/?page_id=6568"},"modified":"2026-07-13T13:23:50","modified_gmt":"2026-07-13T18:23:50","slug":"law-of-sines-and-cosines","status":"publish","type":"page","link":"https:\/\/www.eastcentral.edu\/learning-center\/law-of-sines-and-cosines\/","title":{"rendered":"Law of Sines and Cosines"},"content":{"rendered":"\n

Law of Sines<\/h2>\n\n\n
\n
\"A<\/a><\/figure>\n<\/div>\n\n\n
\n\n\n \n sin A\n <\/span>\n \n a\n <\/span>\n<\/span>\n\n = \n\n\n \n sin B\n <\/span>\n \n b\n <\/span>\n<\/span>\n\n = \n\n\n \n sin C\n <\/span>\n \n c\n <\/span>\n<\/span>\n\n<\/div>\n\n\n\n\n

Law of Cosines<\/h2>\n\n\n\n

For this (or any given triangle), the Law of Cosines says:
c2<\/sup> = a2<\/sup> + b2<\/sup> \u2212 2ab cos C<\/p>\n\n\n

\n
\"A<\/a><\/figure>\n<\/div>\n\n\n

This law is helpful if you need to find the angles of a triangle but know all the side lengths, or if you want to solve for the third side of a triangle when you know the lengths of the other two sides and the angle between them.<\/p>\n\n\n

\n
\"Â鶹Éç<\/a>
For more help, contact The Learning Center<\/figcaption><\/figure>\n<\/div>","protected":false},"excerpt":{"rendered":"

Law of Sines sin A a  =  sin B b  =  sin C c Law of Cosines For this (or any given triangle), the Law of Cosines says:c2 = a2 + b2 \u2212 2ab cos C This law is helpful if you need to find the angles of a triangle but know all the side […]<\/p>\n","protected":false},"author":12,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_eb_attr":"","footnotes":""},"class_list":["post-6568","page","type-page","status-publish","hentry"],"yoast_head":"\nLaw of Sines and Cosines - Learning Center<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.eastcentral.edu\/learning-center\/law-of-sines-and-cosines\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Law of Sines and Cosines - Learning Center\" \/>\n<meta property=\"og:description\" content=\"Law of Sines sin A a  =  sin B b  =  sin C c Law of Cosines For this (or any given triangle), the Law of Cosines says:c2 = a2 + b2 \u2212 2ab cos C This law is helpful if you need to find the angles of a triangle but know all the side […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.eastcentral.edu\/learning-center\/law-of-sines-and-cosines\/\" \/>\n<meta property=\"og:site_name\" content=\"Learning Center\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-13T18:23:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.eastcentral.edu\/learning-center\/wp-content\/uploads\/sites\/27\/2026\/07\/Screenshot-2026-07-13-114420.png\" \/>\n\t<meta property=\"og:image:width\" content=\"407\" \/>\n\t<meta property=\"og:image:height\" content=\"421\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.eastcentral.edu\\\/learning-center\\\/law-of-sines-and-cosines\\\/\",\"url\":\"https:\\\/\\\/www.eastcentral.edu\\\/learning-center\\\/law-of-sines-and-cosines\\\/\",\"name\":\"Law of Sines and Cosines - 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