parallel edge
hi folks,
I have a circle and its vertex on its circumference. Can somebody help me in drawing a line on the same plane in which the circle is, and is parallel to the circle's tangent line at that vertex (if drawn, as right now i dont have that tangent line too). 
You might draw a radius line from the center of the circle and going through the vertex and out of the circle. Then you can draw a perpendicular line to this radiusline within the desired distance from the circle  it would be parallel to the tangent line going through the vertex. To make a line perpendicular to another go to 'constraints' and choose perpendicular tool.

Quote:
Hi everdimension...thanks for your reply.....But I cud'nt find 'constraints' in Gambit software.....could you please help me out in that regard... 
I'm sorry, I assumed you were working in Ansys Design Modeler. I do not know gambit...

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