Don't need splitting a tidy polygon concave into congruent parallelograms, so you have a fact ( m, r, n ) m greater or equal to r, r greater that n, n greater or equal that one or ( m, r, n ) m more that r, r equal to n and n greater or equal to two.
* Only one "like" per meaning and day, the more "likes" the meaning will appear higher in the list
