Lectionary Calendar
Monday, January 27th, 2025
the Third Week after Epiphany
the Third Week after Epiphany
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Bible Encyclopedias
Octahedron
1911 Encyclopedia Britannica
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(Gr. 6KT6, eight, Spa, base), a solid bounded by eight triangular faces; it has 6 vertices and 12 edges. The regular octahedron has for its faces equilateral triangles; it is the reciprocal of the cube. Octahedra having triangular faces other than equilateral occur as crystal forms. See Polyhedron and Crystallography.
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Octahedron'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/o/octahedron.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Octahedron'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/o/octahedron.html. 1910.
