If angle between two lines is 90° (right angle)

  Then they are perpendicular

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So, XY is perpendicular to AB

∴ XY ⊥ AB

 

 

  1. Chapter 14 Class 6 Practical Geometry
  2. Concept wise

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.