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On the lines which intersect three given lines in space

Published online by Cambridge University Press:  20 January 2009

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The following is an elementary discussion of certain propositions in solid geometry which are commonly left to a later stage.

Let ABCD be a quadrilateral formed of rods freely jointed, let points E, F, G, H be taken on AB, BC, CD, DA respectively and let EG, FH be joined by rods freely jointed to the former. Let us investigate whether the resulting framework is rigid.

Type
Research Article
Copyright
Copyright © Edinburgh Mathematical Society 1907