Simson–Wallace theorem

Authors

  • Jiří Blažek Pedagogical Faculty, University of South Bohemia, České Budějovice
  • Pavel Pech Pedagogical Faculty, University of South Bohemia, České Budějovice

Abstract

Two problems related to the Simson–Wallace theorem are explored. The first problem is connected with the Miquel’s point which has the property that the feet of perpendiculars from this point to four lines in a plane are collinear. The second problem is a plane analogy from a space, when the locus of a point P such that the feet of perpendiculars from P to two pairs of lines lying in two mutually parallel planes are coplanar, is investigated. The locus in the space is the cylinder of revolution, in the plane we get the circle.

Published

2016-05-01

How to Cite

Blažek, J., & Pech, P. (2016). Simson–Wallace theorem. MATHEMATICS–PHYSICS–INFORMATICS, 25(3), 173–184. Retrieved from https://mfi.upol.cz/index.php/mfi/article/view/269

Issue

Section

Mathematics