The proposition is true because square angles are 90 degrees. Its converse (“If all angles of a quadrilateral are equal, then it is a square”) is false; a rectangle provides a counterexample.
Share
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
The proposition is true because square angles are 90 degrees. Its converse (“If all angles of a quadrilateral are equal, then it is a square”) is false; a rectangle provides a counterexample.
The proposition is true because every square contains four 90-degree angles. However, the converse (“If all angles of a quadrilateral are equal, then it is a square”) is false. A rectangle serves as an exact counterexample: all four of its interior angles are equal to 90 degrees, but its adjacent sides are unequal, making it a non-square.
For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 9 Propositions and their Converses Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-9/