Send the following on WhatsApp
Continue to ChatClass 9 Chapter 10 Circles Theorem 10.11 : The sum of either pair of opposite angles of a cyclic quadrilateral is 180º. https://www.schoollearners.com/class-9-chapter-10-circles-theorem-10-11/
Class 9 Chapter 10 Circles Theorem 10.11 : The sum of either pair of opposite angles of a cyclic quadrilateral is 180º. https://www.schoollearners.com/class-9-chapter-10-circles-theorem-10-11/