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  • Copy Fig. 9.21 on your notebook and drawa perpendicular from P to line m, using(i) set squares (ii) Protractor (iii) ruler andcompasses. How many such perpendiculars are you able to draw?

Copy Fig. 9.21 on your notebook and drawa perpendicular from P to line m, using(i) set squares (ii) Protractor (iii) ruler and compasses. How many such perpendiculars are you able to draw?

 

Answers (1)

(i) Set square 

  • You are given a line
  • Place a set square with one of its edges along the already aligned with given line, and the right-angled edge touches the point P.
  • Draw the line PQ along the edge of set square.

(ii) Protractor

  • You are given a line
  • Place a Protractor with one of its edges along the already aligned with the given line, and 900 mark is along with the point P.
  • Mark its center O on line l.
  • Draw line PO.

(ii) Ruler and Compass

  • You are given a line and a point P.
  • Take P as the center and draw an arc that cuts the line l at point A and point B..
  • Take point A and point B as a center and arcs in another side with the same radius. Aacrs cuts at point Q.
  • The line PQ is perpendicular to line l.
Posted by

Ravindra Pindel

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