https://hi.khanacademy.org/math/ncert-class-9/x2757d6348a04b24e:quadrilaterals-ncert-new/x2757d6348a04b24e:properties-of-parallelograms/v/proof-opposite-sides-of-a-parallelogram-indian-accent 2025-06-25T04:41:42.443170091Z उपपत्ति: एक समांतर चतुर्भुज की सम्मुख भुजाएँ (Proof: Opposite sides of a parallelogram) Sal proves that a figure is a parallelogram if and only if opposite sides are congruent. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw उपपत्ति: एक समांतर चतुर्भुज की सम्मुख भुजाएँ (Proof: Opposite sides of a parallelogram) Sal proves that a figure is a parallelogram if and only if opposite sides are congruent. https://cdn.kastatic.org/ka-youtube-converted/HjkhJ7GCGYw.mp4/HjkhJ7GCGYw.mp4 509 चतुर्भुजों के प्रकार (Kinds of quadrilaterals) https://hi.khanacademy.org/math/ncert-class-9/x2757d6348a04b24e:quadrilaterals-ncert-new/x2757d6348a04b24e:properties-of-parallelograms/v/proof-opposite-angles-of-a-parallelogram-indian-accent 2025-06-25T04:41:42.443170091Z उपपत्ति: समांतर चतुर्भुज के सम्मुख कोण (Proof: Opposite angles of a parallelogram) Sal proves that opposite angles of a parallelogram are congruent. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw उपपत्ति: समांतर चतुर्भुज के सम्मुख कोण (Proof: Opposite angles of a parallelogram) Sal proves that opposite angles of a parallelogram are congruent. https://cdn.kastatic.org/ka-youtube-converted/DzEBE3Kwl6Y.mp4/DzEBE3Kwl6Y.mp4 248 चतुर्भुजों के प्रकार (Kinds of quadrilaterals) https://hi.khanacademy.org/math/class-9-winter-bridge/x31a65805b47f9b14:quadrilaterals/x31a65805b47f9b14:types-of-quadrilaterals-part-2/v/kites-as-a-geometric-shape-indian-accent 2025-06-25T04:41:42.443170091Z एक ज्यामितीय आकार के रूप में पतंग The video dives into the world of quadrilaterals, specifically focusing on kites. It explores how kites are defined by two pairs of adjacent, congruent sides. It also highlights that the diagonals of a kite intersect at a 90-degree angle, with one line bisecting the other. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw एक ज्यामितीय आकार के रूप में पतंग The video dives into the world of quadrilaterals, specifically focusing on kites. It explores how kites are defined by two pairs of adjacent, congruent sides. It also highlights that the diagonals of a kite intersect at a 90-degree angle, with one line bisecting the other. https://cdn.kastatic.org/ka-youtube-converted/xjlhBujShDY.mp4/xjlhBujShDY.mp4 338 चतुर्भुजों के प्रकार (Kinds of quadrilaterals) https://hi.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:quadrilaterals/xfd53e0255cd302f8:proofs-parallelograms/e/using-properties-basic-8th 2025-03-04T10:38:45.731137987Z समांतर चतुर्भुज के कोण एवं भुजाओं के गुण (स्तर 1) समांतर चतुर्भुज के कोण एवं भुजाओं के गुण (स्तर 1) supriya exercise https://hi.khanacademy.org/math/ncert-class-9/x2757d6348a04b24e:quadrilaterals-ncert-new/x2757d6348a04b24e:properties-of-parallelograms/v/proof-diagonals-of-a-parallelogram-indian-accent 2025-06-25T04:35:10.093609016Z उपपत्ति: समांतर चतुर्भुज के विकर्ण (Proof: Diagonals of a parallelogram) Sal proves that a quadrilateral is a parallelogram if and only if its diagonals bisect each other. Kalakrit (Dubbing) video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw उपपत्ति: समांतर चतुर्भुज के विकर्ण (Proof: Diagonals of a parallelogram) Sal proves that a quadrilateral is a parallelogram if and only if its diagonals bisect each other. https://cdn.kastatic.org/ka-youtube-converted/jLikEjG9mM0.mp4/jLikEjG9mM0.mp4 547 चतुर्भुजों के प्रकार (Kinds of quadrilaterals) https://hi.khanacademy.org/math/in-in-grade-9-ncert/xfd53e0255cd302f8:quadrilaterals/xfd53e0255cd302f8:proofs-parallelograms/e/regular-polygons-advanced-8th 2026-04-08T08:46:38.570038857Z समांतर चतुर्भुज के विकर्ण के गुण बहुभुज पर आधारित उच्च स्तर के प्रश्न supriya exercise