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Let ABCD be a quadrilateral. (i) List all sides of ABCD adjacent to side AB. List all sides opposite to AB. (ii) List all angles of ABCD adjacent to ∠A. List all angles opposite to ∠A. (iii) Define a pair of opposite sides and a pair of opposite angles without using the names of the vertices.

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Sides adjacent to AB are DA and BC, while the opposite side is CD. Angles adjacent to ∠A are ∠B and ∠D, while opposite angle is ∠C. Opposite sides share no vertices; opposite angles share no sides.

Ganita Manjari part 2 Chapter 12.1 Solutions
Class 9 Ganita Manjari Part 2 Chapter 12 Page 56 Question Answer

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  1. In quadrilateral ABCD, sides sharing an endpoint with AB are DA and BC, whereas side CD is opposite to AB. The angles sharing a side with ∠A are ∠B and ∠D and the non-adjacent angle is ∠C. Generally, opposite sides are two sides with no common vertex and opposite angles are two internal angles whose vertices share no common edge.

     

    For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 12 Quadrilaterals Question Answer (2026-27)

    https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-12/

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