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 Circle: chord and arc 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 Circle: chord and arc https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:circles/x06d55bfa213a79fd:perpendicular-to-the-chord-and-equal-chords/v/proof-radius-is-perpendicular-to-a-chord-it-bisects-indian-accent 2025-06-04T10:04:13.13703146Z Proof: radius is perpendicular to a chord it bisects Lets prove that if a radius in a circle is drawn so it bisects a chord, then the radius is also perpendicular to that chord. The proof uses SSS congruence. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Proof: radius is perpendicular to a chord it bisects Lets prove that if a radius in a circle is drawn so it bisects a chord, then the radius is also perpendicular to that chord. The proof uses SSS congruence. https://cdn.kastatic.org/ka-youtube-converted/2nZ4kXK-46E.mp4/2nZ4kXK-46E.mp4 499 Circle: chord and arc https://www.khanacademy.org/math/class-9-tg/x06d55bfa213a79fd:circles/x06d55bfa213a79fd:perpendicular-to-the-chord-and-equal-chords/v/proof-perpendicular-radius-bisects-chord-indian-accent 2025-06-04T10:04:13.13703146Z Proof: perpendicular radius bisects chord Simple proof using right triangle-side-hypotenuse (RSH) congruence criterion to show that a radius perpendicular to a chord bisects it Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Proof: perpendicular radius bisects chord Simple proof using right triangle-side-hypotenuse (RSH) congruence criterion to show that a radius perpendicular to a chord bisects it https://cdn.kastatic.org/ka-youtube-converted/Js9u5i8_HmQ.mp4/Js9u5i8_HmQ.mp4 233 Circle: chord and arc https://www.khanacademy.org/math/revision-mr-class-8-term-2/x42f41628cf7ec54d:week-3-revision-mr-class-8-term-2-math/x42f41628cf7ec54d:circle-chord-and-arc/e/revision-circle-chord-and-arc-mh-class-8 2026-02-03T09:09:58.884796068Z Revision circle chord and arc MH class 8 . Khan Academy exercise