https://www.khanacademy.org/math/revision-term-1-od-math-class-10/x03e14a980a7a91ad:week-3/x03e14a980a7a91ad:circle/v/proof-equal-chords-subtend-equal-angles 2024-06-20T19:30:06.526648211Z Proof: Equal chords subtend equal angles In this video, we discuss the formal proof of the theorem which says that the equal chords that is the chords with same length subtend equal chord at the center of the circle. Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Proof: Equal chords subtend equal angles In this video, we discuss the formal proof of the theorem which says that the equal chords that is the chords with same length subtend equal chord at the center of the circle. https://cdn.kastatic.org/ka-youtube-converted/vXFsXzXF-g4.mp4/vXFsXzXF-g4.mp4 207 Properties related to arc https://www.khanacademy.org/math/revision-term-1-od-math-class-10/x03e14a980a7a91ad:week-3/x03e14a980a7a91ad:circle/e/angle-subtended-by-a-chord 2026-04-08T00:36:09.500768563Z Angle subtended by a chord Let's solve some problems to better understand the relationship between the angles subtended by chords of various lengths. Aakash Bagga exercise https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:circles/x06d55bfa213a79fd:angle-subtened-by-an-arc-of-a-circle/v/inscribed-angle-theorem-proof-indian-accent 2025-06-04T10:04:13.13703146Z Inscribed angle theorem proof Proving that an inscribed angle is half of a central angle that subtends the same arc. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Inscribed angle theorem proof Proving that an inscribed angle is half of a central angle that subtends the same arc. https://cdn.kastatic.org/ka-youtube-converted/2p1GEuOiUfA.mp4/2p1GEuOiUfA.mp4 856 Properties related to arc https://www.khanacademy.org/math/revision-term-1-mh-math-class-10/x041ca11815640a3a:week-3/x041ca11815640a3a:circle/v/inscribed-angles-indian-accent 2025-06-04T10:04:13.13703146Z Inscribed angles Sal finds a missing inscribed angle using the inscribed angle theorem.  Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Inscribed angles Sal finds a missing inscribed angle using the inscribed angle theorem.  https://cdn.kastatic.org/ka-youtube-converted/UnSq7emT1RY.mp4/UnSq7emT1RY.mp4 80 Properties related to arc https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-inscribed-angles/e/inscribed_angles_1 2026-03-18T02:40:44.778871182Z Inscribed angles Practice the relationship between inscribed & central angles that are subtended by the same arc length. Marcia Lee exercise