# Perpendicular Lines Generated by a Quadrilateral

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The centroid of a triangle is the intersection of the lines drawn from the vertices to the midpoints of the opposite sides.

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Contributed by: Jay Warendorff (March 2011)

Open content licensed under CC BY-NC-SA

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## Permanent Citation

"Perpendicular Lines Generated by a Quadrilateral"

http://demonstrations.wolfram.com/PerpendicularLinesGeneratedByAQuadrilateral/

Wolfram Demonstrations Project

Published: March 7 2011