If we divide a square in half we get a √4 rectangle. Diagram 1
When we swing the diagonal of the √4 toward the centerline we make a √5 rectangle. Diagram 2
If we continue to swing the diagonal of the √4 rectangle to the base of the square (in both directions) we also get a √5 rectangle with a square in the middle and (2) Φ rectangles on either side. Remember: √5 = 2.236… & .618… + 1 + .618… = 2.236… Diagram 3
If we swing arcs from the sides of the square away from the square… Diagram 4
and then swing arcs from the base of the mirrored ϕ rectangle… Diagram 5
and then connect the intersection point with the base of the square we make a Pentagon. Diagram 6
If we draw a line to every other corner within the Pentagon we make a Pentagram or five point star. Diagram 7
As we saw here– The √5, Pentagon and Pentagram all have ϕ Ratios.
As noted here, we will look at each of these paintings in detail.