MathDB
inscribed N-gon with different sides and integer angles (N=19,20)

Source: Tournament of Towns, Junior A-Level Paper, Spring 2020 , p3

June 10, 2020
CyclicinscribedpolygonIntegergeometrycombinatorial geometrycombinatorics

Problem Statement

Is it possible to inscribe an NN-gon in a circle so that all the lengths of its sides are different and all its angles (in degrees) are integer, where a) N=19N = 19, b) N=20N = 20 ?
Mikhail Malkin