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 Parallel and Intersecting Lines 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 Parallel and Intersecting Lines https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-geometry/cc-7th-angles/e/angles_1 2026-03-26T21:40:53.527314638Z Finding angle measures between intersecting lines Use your knowledge about angles to find missing angle measures in various situations. David Lai exercise https://www.khanacademy.org/math/geometry-home/geometry-angles/geometry-vert-comp-supp/v/vertical-adjacent-and-linearly-paired-angles 2021-06-21T18:58:13Z Angle relationships example Sal finds a linear pair, vertical angles, and adjacent angles from a diagram. Sal Khan video https://cdn.kastatic.org/googleusercontent/wM7HNr3Ti_oqaTlPxBuND-rn4_mr0Z0fyvi2ucZu--yKAqL_qpFG9Obk_89qtAZrWB5ojqPOu88lmVugjRTWEyTQ Angle relationships example Sal finds a linear pair, vertical angles, and adjacent angles from a diagram. https://cdn.kastatic.org/ka-youtube-converted/vAlazPPFlyY.mp4/vAlazPPFlyY.mp4 283 Parallel and Intersecting Lines https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:across-the-line/e/linear-pair--vertically-opposite-9th 2026-04-07T22:23:57.656416987Z Linear pair and vertically opposite angles Linear pair, vertically opposite supriya exercise https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:parallel-lines-and-transversal/v/angles-parallel-lines-transversals_indian_accent 2025-06-10T04:38:32.202755958Z Angles, parallel lines, & transversals Parallel lines are lines in the same plane that go in the same direction and never intersect. When a third line, called a transversal, crosses these parallel lines, it creates angles. Some angles are equal, like vertical angles (opposite angles) and corresponding angles (same position at each intersection). Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Angles, parallel lines, & transversals Parallel lines are lines in the same plane that go in the same direction and never intersect. When a third line, called a transversal, crosses these parallel lines, it creates angles. Some angles are equal, like vertical angles (opposite angles) and corresponding angles (same position at each intersection). https://cdn.kastatic.org/ka-youtube-converted/rF2igRqwKxg.mp4/rF2igRqwKxg.mp4 401 Parallel and Intersecting Lines https://www.khanacademy.org/math/revision-mh-math-class-6/x01cb2212e31ce997:week-1/x01cb2212e31ce997:basic-concepts-in-geometry/v/parallel-perpendicular-lines_indian_accent 2025-06-05T09:01:06.799874579Z Parallel & perpendicular lines Parallel lines are lines that never intersect, and they form the same angle when they cross another line. Perpendicular lines intersect at a 90-degree angle, forming a square corner. We can identify these lines using angles and symbols in diagrams. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Parallel & perpendicular lines Parallel lines are lines that never intersect, and they form the same angle when they cross another line. Perpendicular lines intersect at a 90-degree angle, forming a square corner. We can identify these lines using angles and symbols in diagrams. https://cdn.kastatic.org/ka-youtube-converted/hi9gcD_dz6s.mp4/hi9gcD_dz6s.mp4 210 Parallel and Intersecting Lines https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:parallel-lines-and-transversal/e/perpendicular-and-parallel-lines-9-a 2026-04-08T00:16:02.937952483Z Identifying perpendicular and parallel lines Perpendicular and parallel lines ashish exercise https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:parallel-lines-and-transversal/v/identifying-parallel-lines-from-the-given-pair-of-angles-made-by-transversal 2025-06-03T03:42:04.110515269Z Identifying parallel lines from the given pair of angles made by transversal Ever wondered how to identify parallel lines with ease? Join us in this enlightening video where we break down the concepts of corresponding angles, alternate interior angles, and co-interior angles. In this visually-rich and unique approach, we make it incredibly simple for you to spot parallel lines using clear criteria and stunning visuals. Mahak Wasan video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Identifying parallel lines from the given pair of angles made by transversal Ever wondered how to identify parallel lines with ease? Join us in this enlightening video where we break down the concepts of corresponding angles, alternate interior angles, and co-interior angles. In this visually-rich and unique approach, we make it incredibly simple for you to spot parallel lines using clear criteria and stunning visuals. https://cdn.kastatic.org/ka-youtube-converted/QguMPTWw4KQ.mp4/QguMPTWw4KQ.mp4 194 Parallel and Intersecting Lines https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:parallel-lines-and-transversal/v/missing-angles-with-a-transversal-indian-accent 2025-06-04T10:04:13.13703146Z Missing angles with a transversal When a third line called a transversal crosses two parallel lines, we can find the measures of angles using properties like corresponding angles, vertical angles, and supplementary angles. If we know just one of the angle measurements, these properties help us find all the missing angle measurements. Skyloom (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Missing angles with a transversal When a third line called a transversal crosses two parallel lines, we can find the measures of angles using properties like corresponding angles, vertical angles, and supplementary angles. If we know just one of the angle measurements, these properties help us find all the missing angle measurements. https://cdn.kastatic.org/ka-youtube-converted/I3mNis-YPG8.mp4/I3mNis-YPG8.mp4 137 Parallel and Intersecting Lines https://www.khanacademy.org/math/class-7-ncf/x063f95a40c290960:parallel-and-intersecting-lines/x063f95a40c290960:parallel-lines-and-transversal/e/perpendicular-and-parallel-lines-9-c 2026-04-07T22:59:30.107127435Z Finding angles made by a transversal Perpendicular and parallel lines ashish exercise