Check sibling questions

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

  Then they are perpendicular


So, XY is perpendicular to AB

∴ XY ⊥ AB



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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.