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  1. Chapter 3 Class 8 Understanding Quadrilaterals
  2. Serial order wise

Transcript

Ex 3.3, 11 Find m∠C in. If (𝐴𝐵) ̅∥ (𝐷𝐶.) ̅ Given AB ∥ DC and BC is the transversal So, ∠ B & ∠ C are angles on the same side of transversal ∠ B + ∠ C = 180° 120° + ∠ C = 180° ∠ C = 180° – 120° ∠ C = 60° (Interior angles on same side of transversal are supplementary)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.