The Geodesic Triacontahedron allows for division along great circle arcs to subdivide the shape into halves and quarters.  The extensions offer unlimited expansion along two axes as well as the connection to rectilinear shapes.

The base 29’ diameter ARCX displaces 660 sq. ft. while the 44’ structure starts at 1,520 sq. ft and can be expanded into a unlimited array of larger structure.