A two-dimensional planar closed surface 
which has a mass 
and a surface density 
(in units of mass per areas squared) such that
 |
The center of mass of a lamina is called its geometric centroid.
Lamina
See also
Cross Section, Geometric Centroid, Perimeter, Plane Curve, SolidExplore with Wolfram|Alpha
References
Anton, H. Calculus: A New Horizon, 6th ed. New York: Wiley, pp. 1008-1009, 1999.Referenced on Wolfram|Alpha
LaminaCite this as:
Weisstein, Eric W. "Lamina." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Lamina.html