Hi,

I need to draw a perpendicular bisector line of a drawn line as shown in attached image.
Required things are:
I do have coordinates of first line i.e. Pt1, Pt2.

1) Find mid point of line.
2) Find Points of perpendicular bisector from mid point, so that the second line drawn is exactly of equal height as of first line.
3) Second line height must be exactly equal to first line.

Name:  PerpendicularBisector.png
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Line in orange color is first line drawn.
I need to find coordinates of second line in green color.