If angle between two lines is 90° (right angle)
Then they are perpendicular
So, XY is perpendicular to AB
∴ XY ⊥ AB
Perpendicular Lines
Last updated at Sept. 28, 2018 by Teachoo
Chapter 5 Class 6 Understanding Elementary Shapes
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About the Author
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.