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Properties of some Groups of Wallace Lines
Published online by Cambridge University Press: 20 January 2009
Extract
Take the point P in the arc AB, and let ∠ ABP = θ, then the trilinear equation of the Wallace line of P (p say) is
(a) The lines AP, BQ, CR drawn parallel to the sides BC, CA, AB of the triangle ABC.
In this case p, q, r, by [§ 17] are readily, seen to be concurrent.
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- Copyright © Edinburgh Mathematical Society 1895
References
* The references in [ ] are to a paper in vol. iii. (pp. 77–93) by MrAlison, J., entitled The so-called Simson Line. To [§§ 19, 27] should be added the further reference Ed. Times Reprint, vol. xxxix., p. 121.Google Scholar
† Cf. Educational Times Reprint, vol. xxxviii., p. 29.Google Scholar