The slicing of a three-dimensional object by a plane (or more general slice).
See alsoArchimedes' Hat-Box Theorem, Arrangement, Cake Cutting, Circle Division by Lines, Cylinder Cutting, Division, Hadwiger Problem, Ham Sandwich Theorem, Square Division by Lines, Torus Cutting
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Weisstein, Eric W. "Cutting." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/Cutting.html