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Proceedings of the American Mathematical Society

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Approximation of convex bodies by triangles

Author: Marek Lassak
Journal: Proc. Amer. Math. Soc. 115 (1992), 207-210
MSC: Primary 52A10; Secondary 52A27
MathSciNet review: 1057956
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Abstract: We show that for every plane convex body $ C$ there exist a triangle $ {T_1}$ and its image $ {T_2}$ under a homothety with ratio $ \tfrac{5} {2}$ such that $ {T_1} \subset C \subset {T_2}$. We prove the conjecture of Grünbaum that if $ C$ is centrally symmetric, then $ {T_1},{T_2}$ can be chosen so that their centroids coincide with the center of $ C$.

References [Enhancements On Off] (What's this?)

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