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In mathematics, a planar lamina (or plane lamina[1]) is a figure representing a thin, usually uniform, flat layer of the solid. It serves also as an idealized model of a planar cross section of a solid body in integration.
Planar laminas can be used to determine moments of inertia, or center of mass of flat figures, as well as an aid in corresponding calculations for 3D bodies.
- ^ Atkins, Tony; Escudier, Marcel (2013), "Plane lamina", A Dictionary of Mechanical Engineering (1 ed.), Oxford University Press, doi:10.1093/acref/9780199587438.001.0001, ISBN 9780199587438, retrieved 2021-06-08
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