https://hi.khanacademy.org/math/ncert-class-9/x2757d6348a04b24e:introduction-to-euclid-s-geometry-ncert-new/x2757d6348a04b24e:untitled-331/v/euclid-as-the-father-of-geometry-indian-accent 2025-08-20T07:11:23.54721619Z ज्यामिति के पिता युक्लिड Euclid, often called the father of geometry, changed the way we learn about shapes with his 13-book series, Euclid's Elements. He used basic ideas called axioms or postulates to create solid proofs and figure out new ideas called theorems and propositions. Studying Euclidean geometry helps us think better and solve problems more effectively. Khan Academy video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw ज्यामिति के पिता युक्लिड Euclid, often called the father of geometry, changed the way we learn about shapes with his 13-book series, Euclid's Elements. He used basic ideas called axioms or postulates to create solid proofs and figure out new ideas called theorems and propositions. Studying Euclidean geometry helps us think better and solve problems more effectively. https://cdn.kastatic.org/ka-youtube-converted/QKWGLtWdtQ8.mp4/QKWGLtWdtQ8.mp4 518 आधारभूत ज्यामिति को दोहराना (Revisiting basic geometry) https://hi.khanacademy.org/math/revision-term-1-up-math-class-6/x12e32098b1dd242b:week-3/x12e32098b1dd242b:geometric-concepts/v/lines-line-segments-rays-indian-accent 2025-06-25T04:43:22.368355476Z रेखा, रेखाखंड और किरण (Lines, line segments, & rays) इस वीडियो में हम रेखा (line), रेखाखंड (line segment) और किरण (ray) के बीच अंतर को समझेंगे। Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw रेखा, रेखाखंड और किरण (Lines, line segments, & rays) इस वीडियो में हम रेखा (line), रेखाखंड (line segment) और किरण (ray) के बीच अंतर को समझेंगे। https://cdn.kastatic.org/ka-youtube-converted/oOXuGOq1m9Y.mp4/oOXuGOq1m9Y.mp4 218 आधारभूत ज्यामिति को दोहराना (Revisiting basic geometry) https://hi.khanacademy.org/math/in-in-class-6th-math-cbse/x06b5af6950647cd2:basic-geometrical-ideas/x06b5af6950647cd2:lines-line-segments-and-rays/e/recognizing_rays_lines_and_line_segments 2025-09-29T17:46:31.800503757Z बिंदुओं, रेखाओं, रेखाखंडों और कोणों को पहचानिए ज्यामितीय आकृतियों में बिंदुओं, रेखाओं, रेखाखंडों और कोणों को पहचानिए। Christopher Wobbles Seymour exercise https://hi.khanacademy.org/math/nas-math/xd4105b9f1a0cf9f0:class-6-nas-prep/xd4105b9f1a0cf9f0:shapes-and-spatial-understanding/e/angle_types 2025-06-25T04:39:03.364199237Z कोण के प्रकार कोण न्यून, सम या अधिक है यह ज्ञात करें|  चाँदा दिया गया है। Ben Alpert exercise