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Parallel and Perpendicular Lines, Midpoints

These are simply shortcuts for classical constructions. The first two tools create lines. The midpoint is a point, of course. These tools could be replaced by standard circle and ruler constructions, or by macros.

Perpendicular lines to segments become invalid, if the intersection is not within the segment. You can switch that off in the properties dialog.

Related topics: Lines and Rays, Points, Object Properties

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