A Simple Proof of Cauchy's Surface Area Formula
classification
🧮 math.DG
math.MGmath.PR
keywords
areasurfacecauchyformulaproofsimpleaveragebody
read the original abstract
We give a short and simple proof of Cauchy's surface area formula, which states that the average area of a projection of a convex body is equal to its surface area up to a multiplicative constant in the dimension.
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