perpendicular bisector


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perpendicular bisector

[‚pər·pən¦dik·yə·lər ′bī‚sek·tər]
(mathematics)
For a line segment in a plane or in space, the line or plane that is perpendicular to this segment and passes through its midpoint.
References in periodicals archive ?
intersection of the perpendicular bisector of segment AB and the
angle bisector of angle BAC and the perpendicular bisector of BC.
This exploration of the perpendicular bisector consists of two parts.
Choose [constructions] perpendicular bisector and click on the line segment AB.
It is worth noting that prior to or in the course of making this proof, students can fold perpendicular bisectors to the base in non isosceles triangles to "establish" that only in isosceles triangles does the perpendicular bisector pass through the opposite vertex.
Everyone knows that the medians of a triangle are concurrent, as are the altitudes and the perpendicular bisectors of the sides.