Each of the 5 polygons shown in Fig. -1 have a
superficial similarity to a sunshade or an umbrella,
with “spokes” color-coded blue extending to
all the corners and a numbers-field “fabric”
affixed to the spokes.
Between adjacent spokes that fabric is like a “web”
connecting these spokes to each other;
a typical web is color-coded orange in each of the polygons.
The centers of the polygons are color coded brown.
In each of these polygons
the spokes are continuous, having no interruptions.
Towards the center of the polygons
their ends are abutted against the center and
against each other,
forming a tight circle around the center and
forming a barrier between the webs and the center.
The webs are composed as a triangular number;
a triangular number is a well known mathematical entity.
The spirals shown in these polygons
have the initial increment from origin to next number
pointing towards a corner of the polygon.
On account of all of the above
comparisons between numbers arrays
on these spirals can be legitimately be drawn.
The polygons and associated spirals per Fig. -2 are
non-compliant with the modes of construction
previously described.
In these polygons the spokes do not form
a tight ring around the center and thus
they don’t form a barrier between
the webs and the center of the polygon.
In the trigon:
The spokes are discontinuous, having interruptions.
In both these polygons:
The webs are not composed as a
standard triangular number.
With each of the spirals in these polygons:
The initial increment from origin to next number is
pointing towards a side of the polygon.
On account of the above
comparisons between numbers arrays
on spirals per Fig. -2 and those on Fig. -1
might be questionable.