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✅ In this video,
✔️ Class: 9th
✔️ Subject: Maths
✔️ Chapter: Circles (Chapter 9)
✔️ Topic Name: Theorems (9.7 to 9.11)
✔️ Topics Covered In this video (By Kishore sir): In this captivating video, Sir guides you through the fascinating realm of Class 9 Maths, focusing on 'Theorems (9.7 to 9.11)' of Chapter 9, "Circles" Sir solves these questions, ensuring you grasp the fundamentals with ease. Join us as we simplify complex topics and make learning fun and engaging for all Class 9 students. Dive deep into the world of Maths as we explore key concepts essential for your studies
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00:00 Introduction: Quadrilaterals - Theorems (9.7 to 9.11)
01:13 Theorem 9.7: The angle subtended by an arc at the centre is double the angle subtended by it at any point on the remaining part of the circle.
32:22 Theorem 9.8: Angles in the same segment of a circle are equal.
41:26 Theorem 9.9: If a line segment joining two points subtends equal angles at two other points lying on the same side of the line containing the line segment, the four points lie on a circle (i.e. they are concyclic).
42:45 Theorem 9.10: The sum of either pair of opposite angles of a cyclic quadrilateral is 180°.
01:00:26 Theorem 9.11: If the sum of a pair of opposite angles of a quadrilateral is 180°, the quadrilateral is cyclic.
01:01:25 Website Overview
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