https://www.khanacademy.org/math/revision-mh-math-class-6/x01cb2212e31ce997:week-1/x01cb2212e31ce997:angles/v/angles-introduction-indian-accent 2025-05-30T05:30:36.604331212Z Angles: introduction Two rays that share the same endpoint form an angle. Learn about angles and the parts of an angle, like the vertex. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Angles: introduction Two rays that share the same endpoint form an angle. Learn about angles and the parts of an angle, like the vertex. https://cdn.kastatic.org/ka-youtube-converted/AnPeLNmqWRg.mp4/AnPeLNmqWRg.mp4 409 Angles and pairs of angles https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:across-the-line/v/complementary-supplementary-angles-indian-accent 2025-06-06T15:33:38.563209632Z Complementary & supplementary angles Learn about complementary and supplementary angles, as well as the definitions of adjacent and straight angles. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Complementary & supplementary angles Learn about complementary and supplementary angles, as well as the definitions of adjacent and straight angles. https://cdn.kastatic.org/ka-youtube-converted/qeYt_jVLGp4.mp4/qeYt_jVLGp4.mp4 510 Angles and pairs of angles https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:across-the-line/v/vertical-angles-indian-accent 2025-06-06T15:33:38.563209632Z Vertical angles By using our knowledge of supplementary, adjacent, and vertical angles, we can solve problems involving the intersection of two lines. Including this one! Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Vertical angles By using our knowledge of supplementary, adjacent, and vertical angles, we can solve problems involving the intersection of two lines. Including this one! https://cdn.kastatic.org/ka-youtube-converted/_ZsU8PAwedc.mp4/_ZsU8PAwedc.mp4 438 Angles and pairs of angles https://www.khanacademy.org/math/revision-term-1-mh-math-class-7/x0bdc8a5f9d8ec377:week-2/x0bdc8a5f9d8ec377:angles-and-pairs-of-angles/v/sum-of-interior-angles-of-a-polygon-indian-accent 2025-06-05T09:01:06.799874579Z Sum of interior angles of a polygon To find the interior angle sum of a polygon, we can use a formula: interior angle sum = (n - 2) x 180°, where n is the number of sides. For example, a pentagon has 5 sides, so its interior angle sum is (5 - 2) x 180° = 3 x 180° = 540°. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Sum of interior angles of a polygon To find the interior angle sum of a polygon, we can use a formula: interior angle sum = (n - 2) x 180°, where n is the number of sides. For example, a pentagon has 5 sides, so its interior angle sum is (5 - 2) x 180° = 3 x 180° = 540°. https://cdn.kastatic.org/ka-youtube-converted/pGRFIuYY_cM.mp4/pGRFIuYY_cM.mp4 550 Angles and pairs of angles https://www.khanacademy.org/math/revision-term-1-mh-math-class-7/x0bdc8a5f9d8ec377:week-2/x0bdc8a5f9d8ec377:angles-and-pairs-of-angles/v/triangle-exterior-angle-example-indian-accent 2025-06-04T10:04:13.13703146Z Triangle exterior angle example An exterior angle is formed outside a triangle by extending a side. Its measure is equal to the sum of the two non-adjacent interior angle measures, thanks to the fact that all angle measures in a triangle add up to 180 degrees. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Triangle exterior angle example An exterior angle is formed outside a triangle by extending a side. Its measure is equal to the sum of the two non-adjacent interior angle measures, thanks to the fact that all angle measures in a triangle add up to 180 degrees. https://cdn.kastatic.org/ka-youtube-converted/g2bHflif-VI.mp4/g2bHflif-VI.mp4 349 Angles and pairs of angles https://www.khanacademy.org/math/revision-mh-math-class-7/xa11c0f43538c6736:week-1/xa11c0f43538c6736:angles-and-pairs-of-angles/e/revision-angles-and-pairs-of-angles-mh-class-7 2026-01-28T03:50:33.306290623Z Revision angles and pairs of angles MH class 7 . Khan Academy exercise