1. Chapter 10 Class 9 Circles
  2. Serial order wise
  3. Theorems

Theorem 10.1

Last updated at Nov. 23, 2017 by

Theorem 10.1 - Class 9 - Equal chords subtend equal angles at center.jpg

  1. Chapter 10 Class 9 Circles
  2. Serial order wise
    3. Theorems
    Concept wise →
Ask Download

Transcript

Theorem 10.1 Equal chords of a circle subtend equal angles at the center. Given: A circle with center O. AB and CD are equal chords of circle i.e. AB = CD To Prove : ∠AOB = ∠DOC Proof : In ΔAOB & ΔDOC AO = OD AB = CD OB = OC ∴ ∆AOB ≅ ∆ DOC ∴ ∠ AOB = ∠ DOC Hence, Proved.

Chapter 10 Class 9 Circles
Serial order wise

About the Author

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 8 years. He provides courses for Practical Accounts, Taxation and Efiling at teachoo.com .
Jail