TOT 137 1987 Spring Main J2 tangentials from cuts of an octagon
Source:
April 17, 2020
octagontangentialcombinatorial geometrycombinatorics
Problem Statement
Quadrilaterals may be obtained from an octagon by cutting along its diagonals (in different ways) . Can it happen that among these quadrilaterals
(a) four
(b ) five possess an inscribed circle? (P. M . Sedrakyan , Yerevan)