Class 10th Math Unit 9 Exercise 9.1 | Step-by-Step Complete Solutions

In this video, we cover the complete step-by-step solutions for Exercise 9.1 from Class 10 Mathematics (Unit 9: Tangents and Angles of a Circle). Learn how to solve geometric problems involving: Tangents to a circle and radius perpendicularity Inscribed Angle Theorem & Central Angle relationships Internal and external touching circles (distance between centers) Word problems involving real-life tangent applications (fountain & decorative pole cables) Timestamps / Chapters: 00:00 - Introduction & Concept Overview 02:43 - Theorem 1 with examples 08:42 - Theorem 2 with examples 14:02 - Theorem 3 with examples 17:47 - Theorem 4 with examples 21:27 - Question 1 (Find value of x) 24:26 - Question 2 (Find angle ABC) 27:30 - Question 3 (Find m∠BCA & m∠BAC) 33:32 - Question 4 (Find m∠DEF - Inscribed Angle) 35:47 - Question 5 (Find x - Central Angle) 37:12 - Question 6 (Fountain & Flagpole Rope Length) 41:00 - Question 7 (Gears Touching Externally) 42:36 - Question 8 (Satellite Dish Sensor - Internal Touch) 44:08 - Question 9 (Cylindrical Holder - Internal Touch) 46:00 - Question 10 (Plaza Pyramid Wire Length)