Konsentrisk
Innen geometri regnes to (eller flere) objekter for å være konsentriske eller koaksiale når de deler samme sentrum eller akse. Sirkler,[1] regulære polygoner[2] og regulære polyedre,[3] og kuler kan være konsentriske i forhold til hverandre (det å dele samme midtpunktet), mens for eksempel sylindere[4] kan dele samme sentrale akse.
Referanser
rediger- ^ Alexander, Daniel C.; Koeberlein, Geralyn M. (2009), Elementary Geometry for College Students, Cengage Learning, s. 279, , https://books.google.com/books?id=cRIFAAAAQBAJ&pg=PA279.
- ^ Hardy, Godfrey Harold (1908), A Course of Pure Mathematics, The University Press, s. 107, https://books.google.com/books?id=tUY7AQAAIAAJ&pg=PA107.
- ^ Gillard, Robert D. (1987), Comprehensive Coordination Chemistry: Theory & background, Pergamon Press, ss. 137, 139, .
- ^ Spurk, Joseph; Aksel, Nuri (2008), Fluid Mechanics, Springer, s. 174, , https://books.google.com/books?id=7_FrhazRTgsC&pg=PA174.