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Ayushree
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Asked: 2026-08-04T04:06:21+00:00 In:

ABCD is a cyclic quadrilateral inscribed in a circle. If ∠A measures 75°, what is the measure of ∠C? If ∠B measures 110°, what is the measure of ∠D?

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In a cyclic quadrilateral, opposite angles are supplementary. Therefore, ∠C = 180° – 75° = 105°. Similarly, ∠D = 180° – 110° = 70°.

∠a measures 75°∠b measures 110°class 9 maths chapter 5 i’m up and down and round and round solutionclass 9 maths exercise 5 all solutions – i’m up and down and round and roundcyclic quadrilateral inscribed in a circlencert class 9 maths ganita manjari chapter 5 solutions
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    1. ABCD is a cyclic quadrilateral. According to the property of a cyclic quadrilateral, the sum of each pair of opposite angles is 180°.

      For angles A and C:

      ∠C = 180° – 75° = 105°

      For angles B and D:

      ∠D = 180° – 110° = 70°

      Therefore, ∠C = 105° and ∠D = 70°.

       

      For more NCERT Solutions for Class 9 Maths Ganita Manjari Chapter 5 I’m Up and Down and Round and Round (2026-27):

      https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-5/

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