by amu <amu786la@[EMAIL PROTECTED]
>
May 5, 2008 at 02:56 PM
> Prove that there are at least one ways to cut the pizza and the
cheesecake in
> halves of equal areas by one straight cut. (By pizzas and cheesecakes,
we
> mean compact connected subsets of R^2)
Lemma: a compact connected subset of R^2 has a center of area.
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how do i prove it
