Perpendicular to a line at a point on the line


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What is the first step in the construction of a perpendicular line from point P to line M

Answered by admin @



Answer:

I option is right.

Step-by-step explanation:

Given a line M and a point P lying outside the line (Here above)

We have to draw a perpendicular line from P to this line.  i.e. we have to draw a line PQ such that PQ is perpendicular to line M, and Q is the point of intersection of perpendicular line with line M.

Just adding a point below line need not be perpendicular to the given line.  Since line M contains infinite points any point connected with P need not be perpendicular to M. Hence option 2 is not correct.

We use straight edge or set square and move one leg of straight edge exactly along the line M till the point P is reached above.  Now draw the line from P along set square another edge.  This line would be perpendicular to M.


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