https://www.khanacademy.org/math/geometry/hs-geo-circles/xff63fac4:hs-geo-proofs-with-inscribed-shapes/v/right-triangles-inscribed-in-circles-proof 2022-10-07T00:00:24.225559754Z Proof: Right triangles inscribed in circles Proof showing that a triangle inscribed in a circle having a diameter as one side is a right triangle Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/15ef1dca-d313-4c4f-b62d-da49a3a29323_1280_720_base.png Proof: Right triangles inscribed in circles Proof showing that a triangle inscribed in a circle having a diameter as one side is a right triangle https://cdn.kastatic.org/ka-youtube-converted/b0U1NxbRU4w.mp4/b0U1NxbRU4w.mp4 335 Demostración con figuras inscritas https://www.khanacademy.org/math/geometry/hs-geo-circles/xff63fac4:hs-geo-proofs-with-inscribed-shapes/v/proving-the-opposite-angles-of-inscribed-quadrilateral-are-supplementary 2022-10-07T00:00:24.225559754Z Inscribed quadrilaterals proof Sal uses the inscribed angle theorem and some algebra to prove that opposite angles of an inscribed quadrilateral are supplementary. video https://cdn.kastatic.org/ka_thumbnails_cache/db83b754-b900-4a6e-9e59-841fd678f736_1280_720_base.png Inscribed quadrilaterals proof Sal uses the inscribed angle theorem and some algebra to prove that opposite angles of an inscribed quadrilateral are supplementary. https://cdn.kastatic.org/ka-youtube-converted/LGnL17ESs3Q.mp4/LGnL17ESs3Q.mp4 236 Demostración con figuras inscritas https://www.khanacademy.org/math/geometry/hs-geo-circles/xff63fac4:hs-geo-proofs-with-inscribed-shapes/v/sss-to-show-a-radius-is-perpendicular-to-a-chord-that-it-bisects 2021-02-16T16:08:13Z Proof: radius is perpendicular to a chord it bisects Sal proves 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. Sal Khan video https://cdn.kastatic.org/googleusercontent/k-hnsxxATEcb8lem_K1me8yzljfmfJ4YJyyl2C5uv00btaFD0KOJ0sUJsLvVwCOfP--FaXh2QLUO1P8fbNcvKQvv Proof: radius is perpendicular to a chord it bisects Sal proves 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/TgDk06Qayxw.mp4/TgDk06Qayxw.mp4 499 Demostración con figuras inscritas https://www.khanacademy.org/math/geometry/hs-geo-circles/xff63fac4:hs-geo-proofs-with-inscribed-shapes/v/perpendicular-radius-bisects-chord 2021-03-11T05:43:32Z 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 Sal Khan video https://cdn.kastatic.org/googleusercontent/IK48kEQiF9D_UideUKYjpUWgJQy-BL-yPzsXd4EdlUfzIiM3WMuGjuORmSVnENVwobuQUelZzii5wi6eRSfK1_H_yg 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/2NgzruZ4_5c.mp4/2NgzruZ4_5c.mp4 233 Demostración con figuras inscritas