Chord in concentric circles | Tangents & Secants to a Circle | TG G10 | Math | Khan Academy

Understand why the center of a circle lies on the bisector of the angle between two tangents in this Grade 10 Math lesson. This key concept in "Tangents & Secants to a Circle" is explained clearly, perfect for students studying geometry. Improve your understanding with Khan Academy's guided lesson. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/clas... Timestamps: 00:00 - Introduction 01:18 - Approach 02:31 - Circle Theorems 03:30 - Proof 04:56 - Summary Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Khan Academy