Lectionary Calendar
Thursday, April 18th, 2024
the Third Week after Easter
the Third Week after Easter
Attention!
Partner with StudyLight.org as God uses us to make a difference for those displaced by Russia's war on Ukraine.
Click to donate today!
Click to donate today!
Bible Encyclopedias
Icosahedron
1911 Encyclopedia Britannica
Search for…
or Resource Toolbox
Additional Links
(Gr. eKovt, twenty, and g (3pa, a face or base), in geometry, a solid enclosed by twenty faces. The "regular icosahedron" is one of the Platonic solids; the "great icosahedron" is a Kepler-Poinsot solid; and the "truncated icosahedron" is an Archimedean solid (see Polyhedron). In crystallography the icosahedron is a possible form, but it has not been observed; it is closely simulated by a combination of the octahedron and pentagonal dodecahedron, which has twenty triangular faces, but only eight are equilateral, the remaining twelve being isosceles (see Crystallography).
Copyright Statement
These files are public domain.
These files are public domain.
Bibliography Information
Chisholm, Hugh, General Editor. Entry for 'Icosahedron'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/i/icosahedron.html. 1910.
Chisholm, Hugh, General Editor. Entry for 'Icosahedron'. 1911 Encyclopedia Britanica. https://www.studylight.org/encyclopedias/eng/bri/i/icosahedron.html. 1910.
