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Exterior angles are angles which are

 outside lines l & m

 

So, ∠1, ∠2, ∠7, ∠8 are exterior angles

 

  1. Chapter 5 Class 7 Lines and Angles
  2. Concept wise

About the Author

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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.