Concerning the practical mosaic probiems of piecing together the mosaics from the regular n-gons(RnG), I have introduced the ranges of R3G up to R9G. Now, this is for the regular n-gons which have prime number angles more tham 10. (hereinafter referred as RNG). Paying attention to their diagonals, I report the results of the reserch for their qualities and meanings on mouldings.
