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 of a chord of a circle 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 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 of a chord of a circle 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 Properties of a chord of a circle 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 Properties of a chord of a circle https://www.khanacademy.org/math/revision-term-1-mh-math-class-10/x041ca11815640a3a:week-3/x041ca11815640a3a:circle/v/proof-equal-chords-are-equidistant-from-the-center 2024-06-20T19:30:06.526648211Z Proof: Equal chords are equidistant from the center We discuss the proof of theorem which says that the equal chords of the circle are equidistant from the center. Devashish Phadnis video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Proof: Equal chords are equidistant from the center We discuss the proof of theorem which says that the equal chords of the circle are equidistant from the center. https://cdn.kastatic.org/ka-youtube-converted/NglXukgt-GM.mp4/NglXukgt-GM.mp4 312 Properties of a chord of a circle https://www.khanacademy.org/math/cambridge-o-level-mathematics-4024/x3f4c73d082a798eb:geometry/x3f4c73d082a798eb:circle-theorem-i/e/chords-corresponding-to-congruent-arcs 2026-04-08T00:54:09.631945657Z Chords corresponding to congruent arcs In this exercise students learn about the congruent arcs and the theorems related to it, specially how the chords in congruent arcs behave and what can be deduced. Devashish Phadnis exercise https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-circum-in-circles/v/constructing-circle-inscribing-triangle 2021-02-16T16:08:13Z Geometric constructions: triangle-inscribing circle Sal constructs a circle that inscribes a given triangle using compass and straightedge. Sal Khan video https://cdn.kastatic.org/googleusercontent/dSGGzwnFFgLNPewAYoJik11-b_ZKtrzE1q3zd2MTV68XSFQOMk6VaZz-OUtn4KpiyhKiPBP7qloW55eOxFeQnQI Geometric constructions: triangle-inscribing circle Sal constructs a circle that inscribes a given triangle using compass and straightedge. https://cdn.kastatic.org/ka-youtube-converted/lmm767eIsGU.mp4/lmm767eIsGU.mp4 153 Properties of a chord of a circle https://www.khanacademy.org/math/geometry/hs-geo-circles/hs-geo-circum-in-circles/v/constructing-circumscribing-circle 2021-02-16T16:08:13Z Geometric constructions: triangle-circumscribing circle Sal constructs a circle that circumscribes a given triangle using compass and straightedge. Sal Khan video https://cdn.kastatic.org/googleusercontent/V0uKUGvEasjML5uvY7GatUOHQWwIAk2a4xLm96HvKFrvB1pMwAyWu-hABihWDpXvR_BidO3JiJTaXKHzQNIUC_Qj Geometric constructions: triangle-circumscribing circle Sal constructs a circle that circumscribes a given triangle using compass and straightedge. https://cdn.kastatic.org/ka-youtube-converted/eSjbEWb4Qp4.mp4/eSjbEWb4Qp4.mp4 142 Properties of a chord of a circle