postulado 100 poligonos concavos ordenados 25
All polygon concave ordered full divided in fact congruent Rhombus ( m, r, 2 ) greater than r m r greater than two, is separated into a diamond shape divided into congruent Rhombus and a diamond divided into blunt congruent order ( m, r-1 ) and ( m-1, r ) respectively, if and only if m and r are consecutive numbers.