Draw a line and name this line l. Now draw a line perpendicular to line l at point P. Mark a point Q on this new line. Now draw another line perpendicular to the line PQ at point Q. Name this line as m.
What do you observe about lines l and m.

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Solution

Step 1: Draw a line and name this line l.
Step 2: Draw a line perpendicular to line l at point P. Mark a point Q on this new line.
Step 3: Draw another line perpendicular to the line PQ at point Q. Name this line as m.
If a line is perpendicular to two or more lines, then all those lines will be parallel to each other.
Hence, lines l and m are parallel to each other.

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Draw a line and name this line l. Now draw a line perpendicular to line l at point P. Mark a point Q on this new line. Now draw another line perpendicular to the line PQ at point Q. Name this line as m. What do you observe about lines l and m.

Draw a line and name this line l. Now draw a line perpendicular to line l at point P. Mark a point Q on this new line. Now draw another line perpendicular to the line PQ at point Q. Name this line as m.
What do you observe about lines l and m.