Let’s take an example

 

  1. Given a line l
    with point P marked on it
    26.jpg
  2. Put ruler on the line so that line is exactly above the ruler
    Drawing perpendicular to a line through a point – Using ruler and set-square - Part 2

 

3. Place set-square on top of the scale

Drawing perpendicular to a line through a point – Using ruler and set-square - Part 3

 

  1. Move set square so that its edge is at the point P
    Drawing perpendicular to a line through a point – Using ruler and set-square - Part 4
  2. Draw a line along the edge of the set square, keeping set-square firm
    Drawing perpendicular to a line through a point – Using ruler and set-square - Part 5


    So, PQ is the line perpendicular to l


    Drawing perpendicular to a line through a point – Using ruler and set-square - Part 6

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.