Abstract
The aim of this paper is to study some properties of secantoptics, defined in [8]. We show that any evolutoid of a given oval $C$ is a hedgehog and that any secantoptic of an oval $C$, is an isoptic of a pair of required evolutoids. We prove some Crofton-type formulas for secantoptics and give a necessary and sufficient condition for a secantoptic to be convex.
Citation
Witold Mozgawa. Magdalena Skrzypiec. "Crofton formulas and convexity condition for secantoptics." Bull. Belg. Math. Soc. Simon Stevin 16 (3) 435 - 445, August 2009. https://doi.org/10.36045/bbms/1251832370
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