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Kriti
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Asked: 2026-09-28T10:14:19+00:00 In:

You have used internal angles of quadrilaterals, but they too require an exact definition, just like how we gave one for a quadrilateral. Precisely define the internal angle of a quadrilateral at a given vertex. Your answer should work for a non-convex quadrilateral too. (Hint: use the opposite vertex as well.)

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At vertex V formed by adjacent rays VA and VB, the internal angle is the planar region between these rays containing the interior segment connecting V to its opposite vertex V’ near V.

Cbse Class 9 Maths Ganita Manjari Part 2 Solutions
class 9 maths ganita manjari part 2 chapter 12 question answer

answer should work for a non-convex quadrilateral toocbse released class 9 ganita manjari part 2 bookchapter 12 quadrilaterals (ganita manjari 2) solutionsganita manjari part 2 chapter 12 quadrilaterals solutionsinternal angles of quadrilaterals
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    1. Let V be a vertex where adjacent sides form rays VA and VB, with V’ being the opposite vertex. The rays divide the plane into two angular regions. The internal angle at V is defined as the region between rays VA and VB containing the segment VV’ near V. For a convex vertex, this measures under 180°, while for a reflex vertex, it exceeds 180°.

       

      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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